What part of the human eye is sensitive to light? MCQ with Answer and Explanation

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What part of the human eye is sensitive to light?

A. Retina

B. Iris

C. Pupil

D. Cornea

Answer: Option A

Solution (By JKSSB Mock Tests)

The retina is the light-sensitive tissue at the back of the eye.

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Question #1

Which instrument measures atmospheric pressure?

A. Anemometer

B. Barometer

C. Hygrometer

D. Thermometer

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Correct Answer: Option B

Explanation:
A barometer is used to measure atmospheric pressure.

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Question #2

The 'Greenhouse Effect' is primarily caused by which gas?

A. Carbon Dioxide

B. Hydrogen

C. Nitrogen

D. Oxygen

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Correct Answer: Option A

Explanation:
Carbon dioxide traps heat in the Earth's atmosphere, acting like the glass in a greenhouse.

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Question #3

What is the smallest unit of digital data?

A. Kilobyte

B. Byte

C. Gigabyte

D. Bit

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Correct Answer: Option D

Explanation:
A bit (binary digit) is the basic unit of information in computing.

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