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JAMB Physics Past Questions & Answers - Page 92

456.

A student measures the volume of a liquid using a measuring cylinder. What else needs to be measured by the student in order to determine the density of the liquid?

A.

depth of the liquid in the cylinder

B.

mass of the cylinder

C.

mass of the liquid

D.

temperature of the liquid

View answer & explanation

Correct answer is C

No explanation has been provided for this answer.

457.

The dimensions of momentum are

A.

MLT

B.

ML^-1T^-1

C.

MLT^-1

D.

ML^-1T

View answer & explanation

Correct answer is C

Momentum = kgms^-1 = MLT^-1

458.

$^{226}_{88}Ra$ emits two alpha particles to produce polonium(po) nuclide. The correct formula for the nuclide?

A.

$^{224}_{86}po$

B.

$^{222}_{86}po$

C.

$^{222}_{84}po$

D.

$^{218}_{84}po$

View answer & explanation

Correct answer is D

No explanation has been provided for this answer.

459.

Which of the following radiations constitutes a stream of electrons?

A.

Gamma rays

B.

X-rays

C.

Cathode rays

D.

Radio waves

View answer & explanation

Correct answer is C

No explanation has been provided for this answer.

460.

Which of the following statements about diode is correct?

A.

reverse bias diodes have low resistance

B.

forward bias diodes have high resistance

C.

forward bias diodes produce high current

D.

forward bias diodes function as a result of heat

View answer & explanation

Correct answer is B

No explanation has been provided for this answer.

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