Free Test Prep CLEP-Science-and-Mathematics Exam Questions

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Total 500 Questions | Updated On: Apr 29, 2026

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Question 1

Which compound is the best conductor of electricity?

A : Water

B : Copper

C : Diamond

D : Graphite

E : Silicon

Answer: B

Question 2

20 gram of a substance evaporates at 500 K by absorbing 740 J of energy. If the specific heat of thesubstance is 1000 J/kg K, what is the final temperature of the substance?

A : 400 K

B : 413 K

C : 537 K

D : 513 K

E : 637 K

Answer: C

Question 3

If an electron jumps from higher energy shell of energy E2 to lower energy shell E1, what will be thewavelength of the photon emitted during the process?

A : h (c/E1 − E2)

B : h (c/E1 × E2)

C : h (c/E1+ E2)

D : h (c/E2)

E : h (c/E2 − E1)

Answer: A

Question 4

The white blood cells responsible for attacking specific pathogens with antibodies are a type of

A : erythrocyte

B : lymphocyte

C : neutrophil

D : macrophage

E : platelet

Answer: B

Question 5

What would be the minimum angle of incidence so that a ray of light travelling from medium 1 of refractiveindex 1.7 to medium 2 of refractive index 1.5 does not emerge out of medium 2?

A : sin−1(0.88)

B : cos−1(0.88)

C : tan−1(0.88)

D : tan−1(1.13)

E : sin−1(1.13)

Answer: A

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Total 500 Questions | Updated On: Apr 29, 2026

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