When light passes from one medium to another, this phenomenon of change in its direction is called:...? Mcqs

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When light passes from one medium to another, this phenomenon of change in its direction is called:...?

(i) Refraction
(ii) Reflection

(iii) Diffraction
(iv) Propagation

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Which from the following is true for "Sound"...?

(i) Sound cannot travel through a vacuum
(ii) Sound cannot travel through gases

(iii) Sound cannot travel through liquids
(iv) Sound cannot travel through solids

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If there is no Sun, The color of the sky would be ...?

(i) Orance
(ii) Blue

(iii) Yellow
(iv) None of these

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Mixture of two metals is called...?

(i) Dispersant
(ii) Alloy

(iii) Amalgam
(iv) Metaloid

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The Planet with shortest daytime is...?

(i) Saturn
(ii) Jupiter

(iii) Neptune
(iv) Mars

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The second most important layer of earth atmosphere is:...?

(i) Mesosphere
(ii) Troposphere

(iii) Stratosphere
(iv) None of these

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The largest planet is

(i) Venus
(ii) Jupiter

(iii) Mercury
(iv) Mars

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The inner core of an optical fiber is __________ in composition...?

(i) Glass or plastic
(ii) Copper

(iii) Bimetallic
(iv) Liquid

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The sun takes ........... years to travel around the galaxy..?

(i) One Hundred Years
(ii) One millions years

(iii) 225 million years
(iv) 225 years

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Who discovered the first vaccine...?

(i) Edward Jenner
(ii) Einstein

(iii) Albert Sabin
(iv) Jonas Salk

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