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Latest MCQs

The part of an eye acting as a diaphragm of camera is ______...?

(A) Cornea
(B) Lens

(C) Iris
(D) Retina

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Latest MCQs

The Mirror used in the Automobiles are___________...?

(A) Concave
(B) Convex

(C) Plains
(D) Reflective

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Latest MCQs

In the structure of fiber, the light is guided through the core due to total internal:...?

(A) Reflection
(B) Refraction

(C) Diffraction
(D) None of these

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Latest MCQs

Sensory hair-cells are present in ______...?

(A) Retina
(B) Cochlea

(C) Skin
(D) Nose

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Latest MCQs

In an acidic medium, phenolphthalein is colourless and in a basic medium, it is ____...?

(A) Green
(B) Blue

(C) Yellow
(D) Pink

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Latest MCQs

Melanoma (skin cancer) is associated with ______________...?

(A) ozone accumulation
(B) ozone depletion

(C) acid rain
(D) allergens

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Latest MCQs

The inert gas which is substituted for nitrogen in the air used by deep sea divers for breathing, is ________ ...?

(A) Argon
(B) Xenon

(C) Helium
(D) Krypton

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Latest MCQs

The atmosphere near the earth’s surface is “heated from below.” Which of the following does not significantly contribute to this heating _____________________...?

(A) Conduction of heat upward from a hot surface
(B) Convection from a hot surface

(C) Absorption of infrared energy that has been radiated from the surface
(D) Heat energy from the earth’s interior

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Latest MCQs

How many sub-shells in a L shell...?

(A) One
(B) Two

(C) Three
(D) Four

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Latest MCQs

Which of the following is an example of compound machine...?

(A) Scissors
(B) Pliers

(C) Pulley
(D) None

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