Physics-
General
Easy

Question

The band width required for transmitting video signal is

  1. 50 KHz    
  2. 1 MHz    
  3. 4.2 MHz    
  4. 6 MHz    

The correct answer is: 4.2 MHz

Related Questions to study

General
physics-

A digital signal

A digital signal

physics-General
General
physics-

Digital signals
i) do not provide a continuous set of values.
ii) represents values as descrete steps.
iii) can utilize binary system
iv) can utilize decimal as well as binary system.
The true option is.

Digital signals
i) do not provide a continuous set of values.
ii) represents values as descrete steps.
iii) can utilize binary system
iv) can utilize decimal as well as binary system.
The true option is.

physics-General
General
physics-

Digital signals

Digital signals

physics-General
parallel
General
biology

Listed below are four respiratory capacities (i - iv) and four jumbled respiratory volumes of a normal human adult.

Which one of the following is the correct matching of two capacities and volumes?

Listed below are four respiratory capacities (i - iv) and four jumbled respiratory volumes of a normal human adult.

Which one of the following is the correct matching of two capacities and volumes?

biologyGeneral
General
physics-

A particle is moving on a circular path of radius r with uniform velocity v. The change in velocity when the particle moves from P blanktoblank Q blankisblank left parenthesis angle P O Q equals 40 degree right parenthesis

Change in velocity equals 2 v sin invisible function application open parentheses theta divided by 2 close parentheses equals 2 v sin invisible function application 20 degree

A particle is moving on a circular path of radius r with uniform velocity v. The change in velocity when the particle moves from P blanktoblank Q blankisblank left parenthesis angle P O Q equals 40 degree right parenthesis

physics-General
Change in velocity equals 2 v sin invisible function application open parentheses theta divided by 2 close parentheses equals 2 v sin invisible function application 20 degree
General
Maths-

L t subscript x not stretchy rightwards arrow 0 end subscript fraction numerator sin begin display style space end style a x over denominator x cos space x end fraction

L t subscript x not stretchy rightwards arrow 0 end subscript fraction numerator sin begin display style space end style a x over denominator x cos space x end fraction
u sin g space space L space h o s p i t a l space t h e o r e m comma space
equals L t subscript x not stretchy rightwards arrow 0 end subscript fraction numerator begin display style fraction numerator d blank over denominator d x end fraction end style sin begin display style space end style a x over denominator begin display style fraction numerator d blank over denominator d x end fraction end style x cos space x end fraction
equals L t subscript x not stretchy rightwards arrow 0 end subscript fraction numerator a space cos space a x over denominator negative x sin x plus cos x end fraction
equals fraction numerator a space cos left parenthesis a cross times 0 right parenthesis over denominator negative 0 sin 0 plus cos 0 end fraction
equals fraction numerator a over denominator 0 plus 1 end fraction
equals a

L t subscript x not stretchy rightwards arrow 0 end subscript fraction numerator sin begin display style space end style a x over denominator x cos space x end fraction

Maths-General
L t subscript x not stretchy rightwards arrow 0 end subscript fraction numerator sin begin display style space end style a x over denominator x cos space x end fraction
u sin g space space L space h o s p i t a l space t h e o r e m comma space
equals L t subscript x not stretchy rightwards arrow 0 end subscript fraction numerator begin display style fraction numerator d blank over denominator d x end fraction end style sin begin display style space end style a x over denominator begin display style fraction numerator d blank over denominator d x end fraction end style x cos space x end fraction
equals L t subscript x not stretchy rightwards arrow 0 end subscript fraction numerator a space cos space a x over denominator negative x sin x plus cos x end fraction
equals fraction numerator a space cos left parenthesis a cross times 0 right parenthesis over denominator negative 0 sin 0 plus cos 0 end fraction
equals fraction numerator a over denominator 0 plus 1 end fraction
equals a
parallel
General
physics-

A small mass m is attached to a massless string whose other end is fixed at P as shown in the figure. The mass is undergoing circular motion in the x minus y plane with centre at O and constant angular speed omega. If the angular momentum of the system, calculated about O blankand P are denoted by stack L with rightwards arrow on top subscript O end subscript and stack L with rightwards arrow on top subscript P end subscript respectively, then

A small mass m is attached to a massless string whose other end is fixed at P as shown in the figure. The mass is undergoing circular motion in the x minus y plane with centre at O and constant angular speed omega. If the angular momentum of the system, calculated about O blankand P are denoted by stack L with rightwards arrow on top subscript O end subscript and stack L with rightwards arrow on top subscript P end subscript respectively, then

physics-General
General
Physics-

Two wires A C and B C are tied at C of small sphere of mass 5 kg, which revolves at a constant speed v in the horizontal circle of radius 1.6 m. The minimum value of v is

From force diagram shown in figure
T subscript 1 end subscript cos invisible function application 30 degree plus T subscript 2 end subscript cos invisible function application 45 degree equals m g(i)
T subscript 1 end subscript sin invisible function application 30 degree plus T subscript 2 end subscript sin invisible function application 45 degree equals fraction numerator m v to the power of 2 end exponent over denominator r end fraction (ii)
After solving Eq. (i) and eq. (ii), we get
T subscript 1 end subscript equals fraction numerator m g minus fraction numerator m v to the power of 2 end exponent over denominator r end fraction over denominator open parentheses fraction numerator square root of 3 minus 1 over denominator 2 end fraction close parentheses end fraction
But T subscript 1 end subscript greater than 0
therefore fraction numerator m g minus fraction numerator m v to the power of 2 end exponent over denominator r end fraction over denominator fraction numerator square root of 3 minus 1 over denominator 2 end fraction end fraction greater than 0

or m g greater than fraction numerator m v to the power of 2 end exponent over denominator r end fraction
or v less than square root of r g end root
therefore blank v subscript m a x end subscript equals square root of r g end root equals square root of 1.6 cross times 9.8 end root equals 3.96 blank m s to the power of negative 1 end exponent

Two wires A C and B C are tied at C of small sphere of mass 5 kg, which revolves at a constant speed v in the horizontal circle of radius 1.6 m. The minimum value of v is

Physics-General
From force diagram shown in figure
T subscript 1 end subscript cos invisible function application 30 degree plus T subscript 2 end subscript cos invisible function application 45 degree equals m g(i)
T subscript 1 end subscript sin invisible function application 30 degree plus T subscript 2 end subscript sin invisible function application 45 degree equals fraction numerator m v to the power of 2 end exponent over denominator r end fraction (ii)
After solving Eq. (i) and eq. (ii), we get
T subscript 1 end subscript equals fraction numerator m g minus fraction numerator m v to the power of 2 end exponent over denominator r end fraction over denominator open parentheses fraction numerator square root of 3 minus 1 over denominator 2 end fraction close parentheses end fraction
But T subscript 1 end subscript greater than 0
therefore fraction numerator m g minus fraction numerator m v to the power of 2 end exponent over denominator r end fraction over denominator fraction numerator square root of 3 minus 1 over denominator 2 end fraction end fraction greater than 0

or m g greater than fraction numerator m v to the power of 2 end exponent over denominator r end fraction
or v less than square root of r g end root
therefore blank v subscript m a x end subscript equals square root of r g end root equals square root of 1.6 cross times 9.8 end root equals 3.96 blank m s to the power of negative 1 end exponent
General
Maths-

Lt subscript x not stretchy rightwards arrow 3 end subscript fraction numerator x minus 3 over denominator square root of open vertical bar x squared minus 9 close vertical bar end root end fraction

space space space limit as x rightwards arrow 3 of space fraction numerator x minus 3 over denominator square root of open vertical bar x squared minus 9 close vertical bar end root end fraction
w h e r e comma space open vertical bar x squared minus 9 close vertical bar equals open curly brackets table attributes columnalign left columnspacing 1.4ex end attributes row cell x squared minus 9 end cell cell comma space i f space x greater or equal than 3 end cell row cell x squared minus 9 end cell cell comma space i f space x less than 3 end cell end table close
equals limit as x rightwards arrow 3 of space fraction numerator x minus 3 over denominator square root of x squared minus 9 end root end fraction
equals limit as x rightwards arrow 3 of space fraction numerator square root of left parenthesis x minus 3 right parenthesis left parenthesis x minus 3 right parenthesis end root over denominator square root of open parentheses x plus 3 right parenthesis left parenthesis x minus 3 close parentheses end root end fraction
equals limit as x rightwards arrow 3 of space fraction numerator square root of x minus 3 end root over denominator square root of x plus 3 end root end fraction
equals fraction numerator square root of 3 minus 3 end root over denominator square root of 3 plus 3 end root end fraction
equals 0 over 6
equals 0

Lt subscript x not stretchy rightwards arrow 3 end subscript fraction numerator x minus 3 over denominator square root of open vertical bar x squared minus 9 close vertical bar end root end fraction

Maths-General
space space space limit as x rightwards arrow 3 of space fraction numerator x minus 3 over denominator square root of open vertical bar x squared minus 9 close vertical bar end root end fraction
w h e r e comma space open vertical bar x squared minus 9 close vertical bar equals open curly brackets table attributes columnalign left columnspacing 1.4ex end attributes row cell x squared minus 9 end cell cell comma space i f space x greater or equal than 3 end cell row cell x squared minus 9 end cell cell comma space i f space x less than 3 end cell end table close
equals limit as x rightwards arrow 3 of space fraction numerator x minus 3 over denominator square root of x squared minus 9 end root end fraction
equals limit as x rightwards arrow 3 of space fraction numerator square root of left parenthesis x minus 3 right parenthesis left parenthesis x minus 3 right parenthesis end root over denominator square root of open parentheses x plus 3 right parenthesis left parenthesis x minus 3 close parentheses end root end fraction
equals limit as x rightwards arrow 3 of space fraction numerator square root of x minus 3 end root over denominator square root of x plus 3 end root end fraction
equals fraction numerator square root of 3 minus 3 end root over denominator square root of 3 plus 3 end root end fraction
equals 0 over 6
equals 0
parallel
General
physics-

A meter bridge is set up as shown in figure, to determine an unknown resistance ‘X’ using a standard 10 ohm resistor. The galvanometer shows null point when tapping - key is at 52 cm mark. The end-corrections are 1 cm and 2 cm respectively for the ends A and B. The determined value of ‘X’ is

A meter bridge is set up as shown in figure, to determine an unknown resistance ‘X’ using a standard 10 ohm resistor. The galvanometer shows null point when tapping - key is at 52 cm mark. The end-corrections are 1 cm and 2 cm respectively for the ends A and B. The determined value of ‘X’ is

physics-General
General
chemistry-

The concentration of electrolyte required to coagulate a given amount of A s subscript 2 S subscript 3 sol is minimum in the case of

The concentration of electrolyte required to coagulate a given amount of A s subscript 2 S subscript 3 sol is minimum in the case of

chemistry-General
General
physics-

To verify ohm’s law, a student is provided with a test resistor RT , a high resistance R1 , a small resistance R2 , two identical galvanometers G1 and G2 , and a variable voltage source V. The correct circuit to carry out the experiment is

To verify ohm’s law, a student is provided with a test resistor RT , a high resistance R1 , a small resistance R2 , two identical galvanometers G1 and G2 , and a variable voltage source V. The correct circuit to carry out the experiment is

physics-General
parallel
General
physics-

If by mistake, voltmeter is connected in series with the resistance then i-v curve expected is (Here i = reading of ammter ,v=reading of voltmeter)

If by mistake, voltmeter is connected in series with the resistance then i-v curve expected is (Here i = reading of ammter ,v=reading of voltmeter)

physics-General
General
maths-

Lt subscript x not stretchy rightwards arrow 0 to the power of x plus 2 end exponent plus 4 end subscript fraction numerator 3 to the power of x plus 1 end exponent plus 4 over denominator 3 to the power of x plus 2 end exponent end fraction

Lt subscript x not stretchy rightwards arrow 0 to the power of x plus 2 end exponent plus 4 end subscript fraction numerator 3 to the power of x plus 1 end exponent plus 4 over denominator 3 to the power of x plus 2 end exponent end fraction

maths-General
General
Maths-

open Lt subscript x not stretchy rightwards arrow 0 end subscript space fraction numerator sin to the power of negative 1 end exponent space x over denominator x end fraction close parentheses

open Lt subscript x not stretchy rightwards arrow 0 end subscript space fraction numerator sin to the power of negative 1 end exponent space x over denominator x end fraction close parentheses

Maths-General
parallel

card img

With Turito Academy.

card img

With Turito Foundation.

card img

Get an Expert Advice From Turito.

Turito Academy

card img

With Turito Academy.

Test Prep

card img

With Turito Foundation.