Latent Heat Notes Questions and Answers PDF Download – Test 111

MCQ 551: SI unit of latent heat is:

1. joule
2. joule ⁄ kelvin
3. joule ⁄ kilogram
4. joule ⁄ (kilogram × kelvin)

MCQ 552: Density of 50 g cm^-1, pressure is 2500 Pascal. The height of liquid is (take gravitational pull of earth):

1. 50 g cm^-1
2. 5 g cm^-1
3. 100 g cm^-1
4. 0.2 g cm^-1

MCQ 553: When speed remains constant, velocity:

1. may change
2. remain constant
3. must changes
4. slightly increases

MCQ 554: If Pressure of a fixed amount of gas is denoted as 'P' and volume is denoted as 'V' then Boyles law can be expressed as:

1. P = k × V (where 'k' is a proportionality constant)
2. P = k ⁄ V (where 'k' is a proportionality constant)
3. P = k × V² (where 'k' is a proportionality constant)
4. P = k ⁄ V² (where 'k' is a proportionality constant)

MCQ 555: Turning effect of force is termed as:

1. action of force
2. action of torque
3. unstable action of force
4. moment of torque