Why does a heavy stone nor break a glass place when place slowly on it, while a small stone falling from a great height easily breaks it ?3 5035
Why it is more difficult to stop a cricket ball than a tennis ball moving with same velocity ?8 15764
When we press our hand on a table downwards, why we do feel the table pressing id greater.1 3235
When a gun is fired, why does the guner receive the jerk ?3 4244
While swimming, why do we press the water backward with our arms and hands ?3 3335
Why a boat rise higher, when it passes from the river water to sea water ?1 3105
Why is it easier to swim in sea water than in the river water?17 61019
Why does a body weigh more at the poles than at the equator?4 21784
If a body is hung from a spring balance first at the poles and then at the Equator, why do the readings of the balance change ?3 3121
Why dies a stone fall when thrown upward, while a balloon rises up?2 3425
Why dies a boat-man push the bank with an oar, when he wants to clear his boat off the bank?1 2520
Why is it easy to turn over a leaf with a wet finger ?1 2912
Why can a bird fly, while a man cannot ?3 4303
When a toy balloon is filled with air and then the air is allowed to go out, why dies the balloon whiz away ?1 2908
When we jump form the boat to the bank why the boat goes backwards from the bank ?1 2851
When is fluorescence strong?
Please define e.s.u. it is the unit of ...... It is equal to .....
1.when a diode has its maximum resistance? 2.is ohm's applicable for an ac circuit?
Why does it take longer to heat a bucket of water than a cup of water?
Explain the three particles that make up an atom?
What does the mev in mev photon mean?
In which medium the velocity of sound is large?
What is time?
How many protons are present in a single deuterium nucleus?
Explain the difference between photodiode & photocell?
what is Gauge?
How many types of wave motions are there?
the resolutions of a michelson interferometer operating with a light source of 640nm wavelenth is A.1280nm B.640nm C.80 nm D.1nm
Explain what is the longest lasting synthetic periodic element?
Explain nuclear fusion?