Pleasure of knowledge

When a bullet is fired upward vertically, it gains in

Kinetic energy

speed

potential energy

acceleration

Bats can fly in the dark because

eyes are quite powerful

IR vision

echo location using ultrasonic waves

echo location using sonar

An ordinary petrol-driven car without modification will not work on the surface of the moon because

petrol disintegrates

petrol evaporates

the gravitational pull is smaller

lack of oxygen

It will work

A rocket and a jet engine differ because

their working principles are different

a rocket uses only liquid fuels

while a rocket carries its own oxygen supply,a jet draws its air out of the atmosphere

None of these

Why do raindrops gain the shape of a sphere?

due to friction

due to atmospheric pressure

due to viscosity of water

due to surface tension

The reason why we do not feel the enormous atmospheric pressure on our body is because

we have adapted ourselves to the pressure

the surface area of our body is very small

our bones are stong enough to withstand the presssure

our blood exerts a pressure slightly more than that of the atmosphere thereby counteracting the same

Why does a person climbing a hill bends forward?

to avoid slipping

to increase speed

to increase stablity

to reduce tiredness

Highest academic degree C V Raman obtained was

M.Sc

M.A

B.Sc

B.A

Ph.D

The Raman effect is optical analogue of

stark effect

Zeeman effect

Compton effect

There is no analogue

Rayleigh's scattering

The scientist who collaborated with Raman and whose name figured in Nobel Lecture of Raman

Rutherford

Compton

K S.Krishnan

Chandrashekar

S N Bose

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