Induced emf in the coil depends upon:

1.	conductivity of coil
2.	amount of flux
3.	rate of change of linked
4.	resistance of coil

X-rays are used in determining the molecular structure of crystalline because:

Light of frequency \(v\) falls on the material of threshold frequency \(v_0.\) Maximum kinetic energy of the emitted electron is proportional to:
1. \(v-v_0\)
2. \(v\)
3. \(\sqrt{v-v_0}\)
4. \(v_0\)

A light moves from denser to rarer medium, which of the following is correct?

Which one of the following statements is true?

A metro train starts from rest and in \(5\) s achieves \(108\) km/h. After that it moves with a constant velocity and comes to rest after travelling \(45\) m with uniform retardation. If total distance travelled is \(395\) m, then total time of travelling is:
1. \(12.2\) s
2. \(15.3\) s
3. \(9\) s
4. \(17.2\) s

A closed organ pipe of length \(20\) cm is sounded with a tuning fork in resonance. What is the frequency of the tuning fork? (\(v=332\) m/s)
1. \(300\) Hz
2. \(350\) Hz
3. \(375\) Hz
4. \(415\) Hz

The temperature of the sun can be found out by using:

The pressure of an ideal gas is increased by keeping temperature constant. What is the effect on the kinetic energy of molecules?

Kirchhoff’s law of junction, \(\sum I = 0,\) is based on: