An artificial satellite revolves round the Earth in circular orbit, which quantity remains constant?
A. Angular Momentum
B. Angular Displacement
C. Linear Velocity
D. None of the above
If a lift is going up with acceleration, the apparent weight of a body is:
A. More than the true weight
B. More or less the true weight
C. Less than the true weight
D. Equal to the true weight
With the increase of pressure, the boiling point of any substance:
A. Decreases
B. Increases
C. Remains same
D. Becomes Zero
Which one of the following has the highest value of specific heat?
A. Water
B. Alcohol
C. Methane
D. Kerosene
If electrical conductivity increases with the increase of temperature of a substance, then it is a:
A. Semiconductor
B. Conductor
C. Insulator
D. None of the above
Young’s modulus is the property of __________?
A. Gas only
B. Liquid only
C. Solid only
D. All of the above
Which of the following is used to control rods in nuclear fission?
A. Graphite
B. Heavy Water
C. Cadmium
D. All of these
Tick the correct statement_________________?
A. Moderators slow down the neutrons
B. Moderators bring the neutrons to rest
C. Moderators absorb the neutrons
D. Moderators reflect the neutrons
Atom is the smallest particall which is_________?
A. Indivisible
B. Divisible
C. Both
D. None of these
Potential energy means?
A. Due to position of object
B. Due to motion of object
C. Due to gravity
D. None of these