Modern Physics Quiz Questions and Answers PDF - 65

MCQ 321: The statement saying that energy is radiated or absorbed in discrete packets is given by

1. plank
2. Einstein
3. Stephen
4. Wien

MCQ 322: At pivot point, body with the mass 'm' will have a torque by the

1. force
2. circle
3. central point
4. radius of the circle

MCQ 323: Current of 0.75 A, when a battery of 1.5 V is connected to the wire of 5 m having cross sectional area 2.5 × 10^-7 m², will have resistivity

1. 1 × 10^-7
2. 1.1 × 10^-7
3. 2 × 10^-7
4. 2.1 × 10^-7

MCQ 324: Charge on an electron was discovered by Millikan in the year

1. 1900
2. 1901
3. 1902
4. 1909

MCQ 325: Source of geothermal energy is

1. sun
2. tides
3. Earth
4. air