1000+ TNPSC Group 4 Physics Study Materials in English Pdf - 1

Question: 1

What is the approximate value of escape velocity for the earth?

(A) 11.2 km/s

(B) 19.5 km/s

(C) 50 km/s

(D) 56.5 km/s

Question: 2

The ratio of the transverse deformation and the longitudinal deformation is called

(A) Bulk modulus of elasticity

(B) Rigidity modulus of elasticity

(C) Young's modulus of elasticity

(D) Poisson ratio

Question: 3

In the adiabatic process _____ remains constant.

(A) Volume

(B) Heat

(C) Temperature

(D) Pressure

Question: 4

Which one of the following pairs of rays is electromagnetic in nature?

(A) Alpha rays and beta rays

(B) X-rays and gamma rays

(C) Beta rays and gamma rays

(D) Cathode rays and X-rays

Question: 5

Which of the following coverts electrical energy into mechanical energy?

(A) Battery

(B) Generator

(C) Switch

(D) Motor