961. al/at + dwj = 0 is called:
A. Laplace’s equation
B. Equation of continuity
C. Tensor equation
D. Equation of polar coordinates
962. First Law of thermodynamics is a special form of:
A. Law of conservation of energy
B. Law of conservation of momentum
C. Law of Inertia
D. None of these
963. Moment of inertia is a tensor of rank:
A. 3rd
B. 2nd
C. 0th
D. 4th
964. The range of projectile will be the same when the angles of projection are:
A. 20 degrees & 80 degrees
B. 30 degrees & 60 degrees
C. 25 degrees & 50 degrees
D. 20 degrees & 45 degrees
965. The work done by a compound pendulum in one complete oscillation is:
A. Zero
B. Equal to K.E of pendulum
C. Equal to P.E of pendulum
D. Equal to total energy of pendulum
966. A man inside an artificial satellite feels weightlessness because the force of attraction due to the earth is:
A. Zero at the place
B. Equal to centripetal force
C. Balance the force of attraction due to the moon
D. Non-efficient due to the particular design of the satellite
967. The component of a vector P along the y-axis is |P|/2, the angle made by the vector with the horizontal is:
A. 60 Degrees
B. 45 Degrees
C. 30 Degrees
D. 90 Degrees
968. It is possible to distinguish between transverse and longitudinal waves by studying the property of:
A. Polarization
B. Interference
C. Diffraction
D. Any of them
969. Work is a?
A. Vector quantity
B. Scalar quantity
C. Fixed quantity
D. None of the above
970. Which of the following forces does not work in displacing a body?
A. Spring force
B. Gravitational force
C. Centripetal force
D. Frictional force
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