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Physics Past Questions and Answers

Jamb Physics Questions

Question 41:

The optical instrument which is suitable for viewing a nearby objects is ...........?

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A Telescope
B Sextant
C Microscope
D Periscope

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Question 42:

The symbol _âˆ’1⁰X used to represent which of the particles?

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A Proton
B Neutron
C Electrons
D Atoms

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Question 43:

A radioactive source emits X—rays of very short wavelength (10 -13m ) what is the frequently of these rays?

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A 2 à— 10¹⁸HZ
B 3 × 10 ¹⁹HZ
C 3 à— 10²¹HZ
D 3 à— 10^-19HZ

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Question 44:

The strength of an electromagnet increase with

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A Increase in the number of turn of the coil
B Decrease in current with the coil
C Increase in the distance between the pole
D Increase in current without the coil

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Question 45:

A platinum resistance thermometer wire has a resistance of 70hms at 0°Cand 7.5 Ohms at 100°C. Calculate the temperature of the wire when the resistance is 7.2 Ohms

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A 15Â°C
B 40°C
C 20Â°C
D 10Â°C

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