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NECO SSCE Physics 2022 past questions and answers

This 2022 NECO SSCE Physics set has 40 practice questions. Try these 5 free sample questions, tap a question to reveal the answer and explanation. Then practise the whole 2022 set with instant marking.

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Sample NECO SSCE Physics 2022 questions

1. A sound wave has frequency 400 Hz and wavelength 0.75 m; what is its speed?
  1. 300 m/s
  2. 533 m/s
  3. 0.0019 m/s
  4. 400.75 m/s

Answer: A. 300 m/s

Wave speed equals frequency multiplied by wavelength, so v = 400 x 0.75 = 300 m/s.

2. An object is placed 2.5 m in front of a plane mirror; what is the distance between the object and its image?
  1. 2.5 m
  2. 5.0 m
  3. 1.25 m
  4. 7.5 m

Answer: B. 5.0 m

A plane-mirror image is as far behind the mirror as the object is in front, giving a separation of 2.5 + 2.5 = 5.0 m.

3. A vibrating body completes one oscillation in 0.020 s; what is its frequency?
  1. 0.020 Hz
  2. 20 Hz
  3. 50 Hz
  4. 500 Hz

Answer: C. 50 Hz

Frequency is the reciprocal of period, so f = 1/0.020 = 50 Hz.

4. The refractive index of a transparent material is 1.5; taking the speed of light in vacuum as 3.0 x 10^8 m/s, what is the speed of light in the material?
  1. 4.5 x 10^8 m/s
  2. 3.0 x 10^8 m/s
  3. 1.5 x 10^8 m/s
  4. 2.0 x 10^8 m/s

Answer: D. 2.0 x 10^8 m/s

Refractive index n = c/v, so v = 3.0 x 10^8/1.5 = 2.0 x 10^8 m/s.

5. A converging lens of focal length 20 cm forms a real image of an object 60 cm from the lens; how far from the lens is the image?
  1. 30 cm
  2. 15 cm
  3. 40 cm
  4. 80 cm

Answer: A. 30 cm

Using 1/f = 1/u + 1/v gives 1/v = 1/20 - 1/60 = 1/30, so v = 30 cm.

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