TNPSC Group 4 Physics Study Material in English Tamil - 1

Question: 1

Convex lens is also called ____ lens.

(A) Diverging

(B) Convex

(C) Refracting

(D) Converging

Ans: D

Converging

Question: 2

Solar eclipse are formed ___

(A) on all days

(B) only on week days

(C) on a new moon day

(D) on a full moon day

Ans: C

on a new moon day

Question: 3

Lunar eclipse occurs ___

(A) on a new moon day

(B) on a full moon day

(C) once in a month

(D) every day

Ans: B

on a full moon day

Question: 4

The speed of light in air or vacuum is ___

(A) 330 m/s

(B) 3x108 m/s

(C) 3x108 km/s

(D) 3,00,000 m/s

Ans: B

3x108 m/s

Question: 5

Lightning conductor was first constructed by

(A) Edison

(B) Newton

(C) Franklin

(D) Volta

Ans: C

Franklin

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