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JAMB Physics

Page 15

Which of the following is the dimension of pressure?

a.

ML2T−3ML^2T^{-3}

b.

MLT−2MLT^{-2}

c.

ML−1T−2ML^{-1}T^{-2}

d.

ML−3ML^{-3}

A capacitor 8μF8 μF, is charged to a potential difference of 100V100 V. The energy stored in the capacitor is

a.

1.0×104J1.0 \times 10^4 J

b.

4.0×10−2J4.0 \times 10^{-2} J

c.

1.25×10J1.25 \times 10 J

d.

8.0×10J8.0 \times 10 J

In a sound wave in air, the adjacent rarefactions and compressions are separated by a distance of 17cm17 cm. If velocity of the sound wave is 340ms−1340 ms^{-1}, determine the frequency.

a.

10Hz10 Hz

b.

20Hz20 Hz

c.

5780Hz5780 Hz

d.

1000Hz1000 Hz

The energy in the nucleus of atoms produced heat which can be used to generate

a.

Mechanical energy

b.

Electrical energy

c.

Potential energy

d.

Kinetic energy

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