7000+ TNPSC MCQ - 1

Question: 1

_____ stated that the natural state of all Earthly bodies is at rest.

(A) Newton

(B) Galileo

(C) Pluto direction

(D) Aristotle

Question: 2

The formula used for Newton’s II law of motion is

(A) Velocity = acceleration × time

(B) Momentum = mass × velocity

(C) $$Speed = {distance} /{time}$$

(D) Force = mass × acceleration

Question: 3

Power of accommodation is achieved by changing the _____ of the eye lens.

(A) Focal length

(B) Vision

(C) Retina

(D) Curvature

Question: 4

Simple Microscope consists of

(A) Large focal length of convex

(B) Short focal length of concave

(C) Large focal length of concave

(D) Short focal length of convex lens

Question: 5

Convex lens always forms a real image, if the object is situated beyond

(A) Focus

(B) Radius of curvature

(C) Centre of curvature

(D) Optic centre