- (A) Concave
- (B) Plane
- (C) Convex
- (D) Biconcave
Everyday Science Mcqs
- (A) Provide insulation for preserving body heat
- (B) Provide striking surface to the wings for flying
- (C) Make the body surface waterproof
- (D) impart coloration for species as well as sex recognition
- (A) A device which when attached to an aircraft makes it invisible on the radar
- (B) A coating which reduces the visibility of an aircraft on radar
- (C) A Technology by which it is possible for the aircraft’s to spy in the enemy air-space
- (D) A technology by using which paratroopers can be dropped stealthily behind the enemy columns.
- (A) Ultraviolet Waves
- (B) Ultrasonic Waves
- (C) Electromagnetic Waves
- (D) Special Retina
- (A) Carbon dioxide
- (B) Carbon monoxide
- (C) Carbon tetrachloride
- (D) None of the above
- (A) the strength of T.V. waves is very limited
- (B) picture cannot be transmitted clearly after a specific distance
- (C) the shape of the earth is spherical
- (D) the air is not a good conductor of light and sound/waves
- (A) 60%
- (B) 65%
- (C) 72%
- (D) 80%
- (A) Mesosphere
- (B) Troposphere
- (C) Stratosphere
- (D) ionosphere
- (A) One tenth
- (B) One fifth
- (C) One fourth
- (D) One third
- (A) The mass of the astronaut is reduced to zero
- (B) Gravity inside the spacecraft ceases to act
- (C) The astronaut is outside the influence of the earth’s gravitational force
- (D) The astronaut and the spacecraft are both in a free-failing state
