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Physics

Physics
What does the slope of a velocity time graph represent?

Speed
Acceleration
Momentum
Distance

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Physics
In spherical polar coordinates (l, q, a), q denotes the polar angle around z-axis and a denotes the azimuthal angle raised from x-axis . Then the y-component of P is given by

Psinq cosa
Pcosq cosa
Psinq sina
Pcosq sina

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Physics
The wavelength at which the peak of intensity of blackbody radiation occurs

Does not follow any pattern as temperature changes
Increases with increase in temperature
Decreases with increase in temperature
Is the same at all temperatures

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Physics
If the velocity of a body is halved its kinetic energy ________

Becomes 1/4 th
Become 4 times
Becomes half
Is also doubled

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Physics
Of the following natural phenomena, tell which one known in Sanskrit as 'deer's thirst'?

Halo
Earthshine
Rainbow
Mirage

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Physics
If ice floating on water in a vessel melts, the water level in the vessel ________ .

Increases
First increases before decreasing
Decreases
Does not change

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