Maths-
General
Easy
Question
Let 
be a function which satisfies 
for 
can be
The correct answer is:
Now put 
put 
or -2 to get (A)
Related Questions to study
Maths-
Let 
If 
then the maximum value of 
is equal to
Let If then the maximum value of is equal to
Maths-General
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Three sound waves of equal amplitude have frequencies (v-1), v,(v+1) . They superpose to give beat. The number of beats produced per second will be
Three sound waves of equal amplitude have frequencies (v-1), v,(v+1) . They superpose to give beat. The number of beats produced per second will be
Physics-General
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The period of a wave is 360ms-1 and frequency is 500 Hz. Phase difference between two consecutive particals is 60, then path different between them will be
The period of a wave is 360ms-1 and frequency is 500 Hz. Phase difference between two consecutive particals is 60, then path different between them will be
Physics-General
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The equation 
, where the symbols carry the usual meaning and a, T and 
ate positive, represents a wave of
The equation , where the symbols carry the usual meaning and a, T and ate positive, represents a wave of
Physics-General
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The identical square rods of metal are welded end to end as shown in figure, 
cal of heat flow through this combination in 4 min. If the rods were welded as shown in figure, the same amount of heat will flow through the combination in
The identical square rods of metal are welded end to end as shown in figure, cal of heat flow through this combination in 4 min. If the rods were welded as shown in figure, the same amount of heat will flow through the combination in
Physics-General
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22 g of carbon dioxide at 27
is mixed in a closed container with 16 g of oxygen at 37. If both gases are considered as ideal gases, then the temperature of the mixture is
22 g of carbon dioxide at 27 is mixed in a closed container with 16 g of oxygen at 37. If both gases are considered as ideal gases, then the temperature of the mixture is
Physics-General
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A small sphere carrying a charge 
is hanging in between two parallel plates
by a string of length 
. Time period of pendulum is 
. When parallel plates are
charged, the time period changes to 
The ratio 
is equal to
A small sphere carrying a charge is hanging in between two parallel plates
by a string of length . Time period of pendulum is . When parallel plates are
charged, the time period changes to The ratio is equal to
Physics-General
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Two springs are joined and attached to a mass of 16 kg. This system is then suspended vertically from a rigid support. The spring constant of the two springs are 
respectively. The period of vertical oscillations of the system will be
Two springs are joined and attached to a mass of 16 kg. This system is then suspended vertically from a rigid support. The spring constant of the two springs are respectively. The period of vertical oscillations of the system will be
Physics-General
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A mass of 2.0 kg is put on a flat pan attached to a vertical spring fixed on the ground as shown in the figure. The mass of the spring and the pan is negligible. When pressed slightly and released the mass executes slightly and released the mass executes a simple harmonic motion. The spring constant is 
. What should be the minimum amplitude of the motion, so that the mass gets detached from the pan? (Take g=10 
)
A mass of 2.0 kg is put on a flat pan attached to a vertical spring fixed on the ground as shown in the figure. The mass of the spring and the pan is negligible. When pressed slightly and released the mass executes slightly and released the mass executes a simple harmonic motion. The spring constant is . What should be the minimum amplitude of the motion, so that the mass gets detached from the pan? (Take g=10 )
Physics-General
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Two identical springs are connected in series and parallel as shown in the figure. If 
are frequencies of arrangements, what is 
?
Two identical springs are connected in series and parallel as shown in the figure. If are frequencies of arrangements, what is ?
Physics-General
Physics-
Two masses 
are suspended together by a massless spring of constant 
. When the masses are in equilibrium, 
is removed without disturbing the system. The amplitude of oscillations is
Two masses are suspended together by a massless spring of constant . When the masses are in equilibrium, is removed without disturbing the system. The amplitude of oscillations is
Physics-General
Physics-
Two springs, of force constants, are connected to a mass 
as shown. The frequency of the mass is 
. If both are made four times their original values, the frequency of oscillation becomes
Two springs, of force constants, are connected to a mass as shown. The frequency of the mass is . If both are made four times their original values, the frequency of oscillation becomes
Physics-General
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Infinite springs with force constants 
respectively are connected in series. The effective force constant of the spring will be
Infinite springs with force constants respectively are connected in series. The effective force constant of the spring will be
Physics-General
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A simple pendulum is suspended from the ceiling of a lift. When the lift is at rest its time period is 
. With what acceleration should the lift be accelerated upwards in order to reduce its period to 
? (g is acceleration due to gravity)
A simple pendulum is suspended from the ceiling of a lift. When the lift is at rest its time period is . With what acceleration should the lift be accelerated upwards in order to reduce its period to ? (g is acceleration due to gravity)
Physics-General
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A metal rod of length and mass is pivoted at one end. A thin disk of mass 
and radius 
is attached at its centre to the free end of the rod. Consider two ways the disc is attached case 
- the disc is not free to rotate about its centre and case 
– the disc is free to rotate about its centre. The rod-disc system performs SHM in vertical plane after being released from the same displaced position. Which of the following statement(s) is/are true?
A metal rod of length and mass is pivoted at one end. A thin disk of mass and radius is attached at its centre to the free end of the rod. Consider two ways the disc is attached case - the disc is not free to rotate about its centre and case – the disc is free to rotate about its centre. The rod-disc system performs SHM in vertical plane after being released from the same displaced position. Which of the following statement(s) is/are true?
Physics-General
