The difference in the duration of day and night increases as one moves from:_________...? Mcqs

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The difference in the duration of day and night increases as one moves from:_________...?

(A) West to East
(B) East and west of the prime meridian

(C) Equator to poles
(D) None of these

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Permissible noise level at Residential area during night time is:...?

(A) 45 dB
(B) 55 dB

(C) 75 dB
(D) 80 dB

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In which part of the eye lies the pigment that decides the colour of the eyes of a person___...?

(A) Retina
(B) Iris

(C) Cornea
(D) Pupal

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which is the second brightest star in the Universe...?

(A) Betelgeuse
(B) Vega

(C) Canopus
(D) None of these

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Which of the following surfaces gives diffused reflection...?

(A) Polished metal surface
(B) Calm surface of a lake

(C) Mirror
(D) Roadway

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All are factors affecting enzyme activity except...?

(A) pH
(B) Substrate concentration

(C) Organic solvent
(D) Temperature

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The speed of the sound in air is ______...?

(A) 143 m/s
(B) 243 m/s

(C) 343 m/s
(D) 443 m/s

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The setting sun often looks oval in the shape because of__________...?

(A) The fact that sun really becomes oval in the evening
(B) Refraction of rays of sun passing through the atmosphere

(C) Optical Illusion
(D) Dispersion

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The _____ is the largest natural source of light...?

(A) Sun
(B) Moon

(C) Star
(D) None of these

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A process in which light rays falls on any material object and these rays bounce back is known as...?

(A) Reflection
(B) Refraction

(C) Diffusion
(D) Absorption

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