Physics-
General
Easy
Question
Frequency ranges for micro waves are :
The correct answer is: 
Related Questions to study
physics-
The higher frequency TV broad casting bands range is
The higher frequency TV broad casting bands range is
physics-General
Physics-
A string of length
is fixed at one end and carries a mass
at the other end. The string makes
revolutions per
around the vertical axis through the fixed end as shown in figure, then tension in the string is
From (i) and (ii)

A string of length
is fixed at one end and carries a mass
at the other end. The string makes
revolutions per
around the vertical axis through the fixed end as shown in figure, then tension in the string is
Physics-General
From (i) and (ii)

maths-
where
Pairs
which satisfy both the equations is/are
where
Pairs
which satisfy both the equations is/are
maths-General
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The number of integral values of k for which the equation
has a solution is
The number of integral values of k for which the equation
has a solution is
maths-General
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The number of distinct real roots of
in the interval
is
The number of distinct real roots of
in the interval
is
maths-General
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If , then the number of real values of x, which satisfy the equation
is :
If , then the number of real values of x, which satisfy the equation
is :
maths-General
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The number of solutions of the equation
in the interval
is
The number of solutions of the equation
in the interval
is
maths-General
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The possible values of such that
are :
The possible values of such that
are :
maths-General
maths-
The number of values of x in the interval [0, 3
] satisfying the equation ,
is
The number of values of x in the interval [0, 3
] satisfying the equation ,
is
maths-General
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The number of solutions of tan x + sec x = 2 cos x in [0, 2], is
The number of solutions of tan x + sec x = 2 cos x in [0, 2], is
maths-General
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Over the solution of
is
Over the solution of
is
maths-General
maths-
Solution to inequality cos 2x + 5 cos x + 3 ≥ 0 over
is
Solution to inequality cos 2x + 5 cos x + 3 ≥ 0 over
is
maths-General
maths-
Let
The sum of all the solutions of f (x) = 0 in [0, 100p] is
Let
The sum of all the solutions of f (x) = 0 in [0, 100p] is
maths-General
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The general solution of the trigonometric equation tan x + tan 2x + tan 3x = tan x · tan 2x tan 3x is
where n
I
We know that
tan x · tan 2x · tan 3x = tan 3x – tan 2x – tan x
hence tan x + tan 2x + tan 3x = tan 3x – tan 2x – tan x
Þ tan x + tan 2x = 0
\ tan 2x = tan (– x)
2x = np – x

tan x · tan 2x · tan 3x = tan 3x – tan 2x – tan x
hence tan x + tan 2x + tan 3x = tan 3x – tan 2x – tan x
Þ tan x + tan 2x = 0
\ tan 2x = tan (– x)
2x = np – x
The general solution of the trigonometric equation tan x + tan 2x + tan 3x = tan x · tan 2x tan 3x is
where n
I
maths-General
We know that
tan x · tan 2x · tan 3x = tan 3x – tan 2x – tan x
hence tan x + tan 2x + tan 3x = tan 3x – tan 2x – tan x
Þ tan x + tan 2x = 0
\ tan 2x = tan (– x)
2x = np – x

tan x · tan 2x · tan 3x = tan 3x – tan 2x – tan x
hence tan x + tan 2x + tan 3x = tan 3x – tan 2x – tan x
Þ tan x + tan 2x = 0
\ tan 2x = tan (– x)
2x = np – x
maths-
The sum of all the solution of cotθ= sin 2θ(θ ≠ n
, n integer), 0 ,
is
For the given relation cos q = (2 sin q cos q) sin q, sin q¹ 0

Then the sum of roots is 3p/2
Then the sum of roots is 3p/2
The sum of all the solution of cotθ= sin 2θ(θ ≠ n
, n integer), 0 ,
is
maths-General
For the given relation cos q = (2 sin q cos q) sin q, sin q¹ 0

Then the sum of roots is 3p/2
Then the sum of roots is 3p/2