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September 27, 2014

Quiz 19- Physics -General Science: General Knowledge Question & Answers

181 Q) "Assertion (A) Stress is the internal force per unit area of a body. 
Reason (R) Rubber are more elastic than steel. "

(a)Both A and R are true and R is the correct explanation of A
(b)Both A and R are true but R is not the correct explanation of A
(c)A is true but R is false
(d)A is false but R is true

182 Q) "Which of the following wavelengths will suffer maximum deviation while passing through a prism? "

(a)Orange
(b) Red
(c) Green
(d) Violet

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183 Q) In an satellite a space traveller tries to fill ink in a pen by dipping it in ink. The amount of the ink filled in the pen as compared to the quantity of ink filled on the earth's surface will be

(a) same
(b)less
(c) more
(d)None of these


184 Q) "The common soap used in washing is worked by "

(a)Reducing the surface tension of water
(b)Increasing the surface tension of water
(c)Reducing the viscosity of water
(d)Increasing the viscosity of water

185 Q) "A truck and a car are moving with equal velocity. On applying the brake both will stop after certain distance then which one of the following statements is correct? "

(a) The truck will cover less distance before rest
(b) The car will cover less distance before rest
(c) Both will cover equal distance
(d) None of the above

186 Q) "Hair of a shaving brush cling together when the brush is removed from water due to "

(a) Viscosity
(b)Elasticity
(c) Friction
(d)Surface tension

187 Q) "Which one of the following has given the centripetal force for a car moving on a road? "

(a)Force of breaks
(b)The driver of the car
(c)Force by the steering wheel
(d)Friction due to tyres

188 Q) "Assertion (A) A laser beam is used for carrying out surgery. 
Reason (R) A laser beam is highly directional."

(a)Both A and R are true and R is the correct explanation of A
(b)Both A and R are true but R is not the correct explanation of A
(c)A is true but R is false
(d)A is false but R is true

189 Q) Which one of the following pairs of physical quantities may be represented in the same unit?.

(a)Temperature and mole
(b)Heat and work
(c)Heat and temperature
(d)Specific heat ant heat

190 Q) "Why is it difficult to transmit audio signals directly? "

(a)A very high antenna is needed for their propagation
(b)Audio signals have a very high frequency
(c)Audio signals can't propagate alone
(d)Audio signals can't propagate through air

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