Q:1-What is the dimensional formula of torque?
Mark one answer:
MLT ^-2
MT ^-2
ML²T^-2
MLT ^-1

Q:6-Consider the figure given below. B is the nodal plane or ground. A body of mass M is kept on a horizontal plane A at a certain height above the plane B. Plane C is at same height from the ground (B) as that of plane A. Which of the following statements is correct?

Potential energy of the body is non-zero with respect to the plane A
Potential energy of the body is non-zero with respect to the plane C
Potential energy of the body is non-zero with respect to the plane B
Mark one answer:
1
2
3
Both 1 and 2

Q:7-Displacement of a particle in SHM is given as
x(t) = 23 sin(314t) cm
What is the amplitude and frequency of oscillation of the particle?
Mark one answer:
2.6 cm, 40 Hz
2.3 cm, 40 Hz
2.3 cm, 50 Hz
2.6 cm, 50 Hz

Q:8-Which of the following do not require any medium to propagate?
Mark one answer:
Sound waves
Seismic waves
Tides
Light waves

Q:9-A cylinder of height 2.5 m is filled completely with water. A hole is made at the bottom of the cylinder in such a way that water is coming out of it. What is the velocity of water coming out of the cylinder?
Mark one answer:
6.4 m/s
4 m/s
9.8 m/s
7 m/s

Q:10-An object A of mass 40 kg at 60⁰ C has internal energy of 4000 J. If it is kept in contact with another object B of mass 40 kg at 65⁰ C having internal energy 4500 J, then which of the following statements is true regarding heat transfer? (Assume boundary of contact can allow heat transfer to take place)
Mark one answer:
Heat will flow from A to B
Heat will flow from B to A
No heat will flow between the objects A and B
Temperature of A decreases