Physics Questions Answers

"It is impossible to make an exact measurement of both the position and momentum of a particle on the atomic scale." Who proposed this?

Match List I with List II and select the correct answer using the codes given below the Lists:

List I (Physical Quantity)
(a) Power
(b) Pressure
(c) Energy
(d) Radioactivity

List II (Unit)
1. Kilowatt Hour
2. Watt
3. Becquerel
4. N/m²

Match List I with List II and select the correct answer using the codes given below the Lists:

List I (Physical Phenomenon)
(a) Rolling motion
(b) Soap bubble
(c) Bending of beams
(d) Satellite motion

List II (Associated physical property)
1. Surface tension
2. Gravitation
3. Elasticity
4. Moment of inertia

Consider the following statements regarding the waves associated with a moving electron(Matter waves):
1. Matter waves can move with a velocity greater than that of light.
2. They can exhibit the phenomenon of interference
3. They represent the probability of finding the electrons at different points in space.
4. They are elastic waves.
Which of these statements are correct?

Super conductivity results when matter is —

Liquids flow from a higher level to a lower level. Which one of the following can climb up the walls of the glass vessel in which it is kept?

Panchromatic photographic film is sensitive to —

A real gas can be liquefied by the application of pressure when its temperature is

A nuclear reactor harnesses nuclear energy by

If a proton of mass m is moving with the velocity of light, its mass will be