When the angle of refraction is 90° and the refractive index for water is 1. 33, the critical angle is ______...? Mcqs

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When the angle of refraction is 90° and the refractive index for water is 1. 33, the critical angle is ______...?

(A) 48.8°
(B) 50.0°

(C) 49.1°
(D) 51.0°

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Solar energy is radiated in the form of...?

(A) Transverse wave
(B) Electromagnetic waves

(C) Infrared wave
(D) None of these

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Hypocotyl hook is formed during the germination of...?

(A) Bean Seed
(B) Maize Seed

(C) Apple Seed
(D) None

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The total energy of revolving electron in an atom_____________...?

(A) Will always be positive
(B) Can never be positive

(C) Can have any value above zero
(D) Cannot be negative

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Hypermetropia or Hyperopia means being able to see__________________...?

(A) Distant objects opaque
(B) Distant object clearly

(C) Close objects unclear
(D) Close objects clearly

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The type of reproduction in which two parents of different sexes are involved...?

(A) Asexual Reproduction
(B) Sexual Reproduction

(C) Binary Fission
(D) Fragmentation

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Metal are highly ___________ ...?

(A) Electropositive
(B) Electronegativity

(C) Both of these
(D) Neutral

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With no air resistance regardless of their masses, the bodies fall with...?

(A) Same acceleration
(B) Different acceleration

(C) Same velocity
(D) None of these

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About 50% of the Earth’s crust, including the waters on the Earth and atmosphere, is...?

(A) Oxygen
(B) Cabon Dioxide

(C) Silicon
(D) Clay

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Ultra Microscopic viruses are the main cause of__________...?

(A) Malaria
(B) Measles

(C) Mumps
(D) Cholera

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