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Physics-

General

Easy

Question

Maximum kinetic energy (E_k ) of a photoelectron varies with the frequency ( v ) of the incident radiation as

The correct answer is:

Related Questions to study

The degree of the differential equation satisfying $square root of 1 plus x squared end root plus square root of 1 plus y squared end root equals A open parentheses x square root of 1 plus y squared end root minus y square root of 1 plus x squared end root close parentheses$ is

The degree of the differential equation satisfying $square root of 1 plus x squared end root plus square root of 1 plus y squared end root equals A open parentheses x square root of 1 plus y squared end root minus y square root of 1 plus x squared end root close parentheses$ is

If $x fraction numerator d y over denominator d x end fraction equals y left parenthesis log space y minus log space x plus 1 right parenthesis$ then the solution of the equation is :

If $x fraction numerator d y over denominator d x end fraction equals y left parenthesis log space y minus log space x plus 1 right parenthesis$ then the solution of the equation is :

A simple magnifying lens is used in such a way that an image is formed at 25 cm away from the eye. In order to have 10 times magnification, the focal length of the lens should be

A simple magnifying lens is used in such a way that an image is formed at 25 cm away from the eye. In order to have 10 times magnification, the focal length of the lens should be

physics-General

parallel

The differential equation of all circles which pass through the origin and whose centres lie on y-axis is

The differential equation of all circles which pass through the origin and whose centres lie on y-axis is

Let p, q $element of$ {1,2,3,4}.Then number of equation of the form px²+qx+1=0,having real roots ,is

Let p, q $element of$ {1,2,3,4}.Then number of equation of the form px²+qx+1=0,having real roots ,is

Number of values of 'p' for which the equation $open parentheses p squared minus 3 p plus 2 close parentheses x squared minus open parentheses p squared minus 5 p plus 4 close parentheses x plus p minus p squared equals 0$ possess more than two roots ,is:

Number of values of 'p' for which the equation $open parentheses p squared minus 3 p plus 2 close parentheses x squared minus open parentheses p squared minus 5 p plus 4 close parentheses x plus p minus p squared equals 0$ possess more than two roots ,is:

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Statement-1- The number $blank to the power of 1000 end exponent C subscript 500 end subscript$ is not divisible by 11.Because
Statement-2- If p is a prime, the exponent of p in n! is $open square brackets fraction numerator n over denominator p end fraction close square brackets$ + $open square brackets fraction numerator n over denominator p to the power of 2 end exponent end fraction close square brackets$ + $open square brackets fraction numerator n over denominator p to the power of 3 end exponent end fraction close square brackets$ +……Where [x] denotes the greatest integer $less or equal than$ x.

Statement-1- The number $blank to the power of 1000 end exponent C subscript 500 end subscript$ is not divisible by 11.Because
Statement-2- If p is a prime, the exponent of p in n! is $open square brackets fraction numerator n over denominator p end fraction close square brackets$ + $open square brackets fraction numerator n over denominator p to the power of 2 end exponent end fraction close square brackets$ + $open square brackets fraction numerator n over denominator p to the power of 3 end exponent end fraction close square brackets$ +……Where [x] denotes the greatest integer $less or equal than$ x.

According to Newton’s law of cooling, the rate of cooling is proportional to $open parentheses increment theta close parentheses to the power of n end exponent$ , where $increment theta$ is the temperature differences between the body and the surroundings and $n$ is equal to

According to Newton’s law of cooling, the rate of cooling is proportional to $open parentheses increment theta close parentheses to the power of n end exponent$ , where $increment theta$ is the temperature differences between the body and the surroundings and $n$ is equal to

physics-General

$text If end text y equals e to the power of 4 x end exponent plus 2 e to the power of negative x end exponent$ satisfies the relation $fraction numerator d cubed y over denominator d x cubed end fraction plus A fraction numerator d y over denominator d x end fraction plus B y equals 0$ then value of A and B respectively are:

$text If end text y equals e to the power of 4 x end exponent plus 2 e to the power of negative x end exponent$ satisfies the relation $fraction numerator d cubed y over denominator d x cubed end fraction plus A fraction numerator d y over denominator d x end fraction plus B y equals 0$ then value of A and B respectively are:

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Radius of a conductor increases uniformly from left end to right end as shown in fig Material of the conductor is isotropic and its curved surface is thermally insulated from surrounding. Its ends are maintained at temperatures $T subscript 1 end subscript$ and $T subscript 2 end subscript left parenthesis T subscript 1 end subscript greater than T subscript 2 end subscript right parenthesis$ : If, in steady state, heat flow rate is equal to $H$ , then which of the following graphs is correct

Radius of a conductor increases uniformly from left end to right end as shown in fig Material of the conductor is isotropic and its curved surface is thermally insulated from surrounding. Its ends are maintained at temperatures $T subscript 1 end subscript$ and $T subscript 2 end subscript left parenthesis T subscript 1 end subscript greater than T subscript 2 end subscript right parenthesis$ : If, in steady state, heat flow rate is equal to $H$ , then which of the following graphs is correct

physics-General

Water and turpentine oil (specific heat less than that of water) are both heated to same temperature. Equal amounts of these placed in identical calorimeters are then left in air

Water and turpentine oil (specific heat less than that of water) are both heated to same temperature. Equal amounts of these placed in identical calorimeters are then left in air

physics-General

Variation of radiant energy emitted by sun, filament of tungsten lamp and welding are as a function of its wavelength is shown in figure. Which of the following option is the correct match?

Variation of radiant energy emitted by sun, filament of tungsten lamp and welding are as a function of its wavelength is shown in figure. Which of the following option is the correct match?

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parallel

Six identical metallic rods are joined together in a pattern as shown in the figure. Points A and D are maintained at temperature $60 ℃$ and $240 ℃$ . The temperature of the junction $B$ will be

Six identical metallic rods are joined together in a pattern as shown in the figure. Points A and D are maintained at temperature $60 ℃$ and $240 ℃$ . The temperature of the junction $B$ will be

physics-General

Which curve shows the rise of temperature with the amount of heat supplied, for a piece of ice?

Which curve shows the rise of temperature with the amount of heat supplied, for a piece of ice?

physics-General

The graph signifies

The graph signifies

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