A tuning fork sounds louder when its stem is pressed agai...
A tuning fork sounds louder when its stem is pressed against a table top than when held in air because
a larger mass of air is set vibrating by the table top
the whole table vibrates in resonance
the whole table has acquired a larger frequency
the fork and table have the same frequency
the amplitude of the vibrating fork is increased.
Correct answer is C
No explanation has been provided for this answer.
The pressure of a fixed mass of an ideal gas at 27°C is 3 pa. The gas is heated at a constant vo...
Clinical thermometers are examples of ...
Which of the following is/are not correct about isotopes of an element? The have ...
Flourescent tubes produces light by the ...
The specific latent heat of fusion of lead is the amount of heat required to ...
A piece of copper of mass 20g at a temperature of 110°C was dropped into a mixture of ice and wa...