Classroom

Physics Past Questions

Updated description

2,483 questions JAMB 2483 WAEC 1904 NECO 322 CUSTOM 10

Select subject

Download PHP app Ask a Question Check Syllabus Past Question Videos Topic Video Lessons

Take a test

Custom CBT

Create and set up a CBT environment with your preferred subjects.

JAMB CBT Simulator

Practice JAMB CBT with real UTME past questions in CBT format.

WAEC CBT Practice 2026 Simulator

CB-WASSCE styled past question practice.

NECO CBT Practice 2026 Simulator

SSCE & GCE styled past question practice.

Past Questions

2,483 questions

Question 1 of 20 2,483 total questions

Question 991

jamb 1988

The principle of operation of an induction coil is based on

AOhm's law

BAmphere's law

CFaraday's law

DColumbs law

View Explanation & Discuss

Question 992

jamb 1988

Which of the following ammeters may be used to measure alternating currents? i. moving-coil ammeter ii. moving-iron ammeter iii. hot-wire ammeter

Ai and ii only

Bii and iii only

Ci and iii only

Di, ii, and iii

View Explanation & Discuss

Question 993

jamb 1988

A household refrigerator is rated 200 watts. If electricity costs 5k per kWh, what is the cost of operating it in 20 days?

AN4.80

BN48.00

CN480.00

DN4800.00

View Explanation & Discuss

Question 994

jamb 1988

When a resistance R is across a cell, the voltage across the terminals of the cell is reduced to two-third of its normal value. The internal resistance of the cell is

A\(\frac{2}{1}\)R

B\(\frac{1}{2}\)R

C\(\frac{3}{2}\)R

D5R

View Explanation & Discuss

Question 995

jamb 1988

A cell of internal resistance 2 ohms supplies current to a 6 ohms resistor. The efficiency of the cell is

A12.0%

B25.0%

C33.3%

D75.0%

View Explanation & Discuss

Question 996

jamb 1988

A spectrum of sunlight is said to be impure when

Ait is made of only three colours

Bit has no red colour in it

Cthe different colours in it overlap

Dit does not contain white light

View Explanation & Discuss

Question 997

jamb 1988

Which of the following statement is TRUE of ultraviolet, visible and infra-red rays?

Athey are all electromagnetic waves with the same wavelength

Bultra-violet rays have shorter wavelengths than infra-red rays and produce flourescence

Cinfrared rays have shorter wavelength than visible light and produce the sensation of heat

Dthe wavelenghts increase in the sequence: visible, ultra-violet, infra-red

View Explanation & Discuss

Question 998

jamb 1988

When white light is dispersed by a spectrometer, the component having the shortest wavelength is

Aorange

Bgreen

Cviolet

Dred

View Explanation & Discuss

Question 999

jamb 1988

Which of the following phenomena explains the formation of a mirage? i. Reflection ii. Refraction iii. Diffraction

Ai and ii only

Bii and iii only

Ci and iii only

Di, ii, and iii only

View Explanation & Discuss

Question 1000

jamb 1988

An object is placed 10cm in front of a concave mirror of focal length 15cm. What is the position and nature of the image formed?

A30cm and virtual

B6cm and real

C6cm and virtual

D30cm and real

View Explanation & Discuss

Question 1001

jamb 1988

To obtain a magnification of 2.5, how far should an object be placed from the pole of a thin converging lens of focal length 0.20m?

A0.13m

B0.25m

C0.28m

D0.50m

View Explanation & Discuss

Question 1002

jamb 1988

Two strings of the same length and under the same tension gives notes of frequencies in the ratio 4 : 1. The masses of the strings are in the corresponding ratio of

A2 : 1

B1 : 2

C1 : 4

D1 : 16

View Explanation & Discuss

Question 1003

jamb 1988

A slight loading of a tuning fork has the effect of

Adecreasing its amplitude

Bincreasing its amplitude

Cdecreasing its frequency

Dincreasing its frequency

View Explanation & Discuss

Question 1004

jamb 1988

The speed of sound in air at sea level is 340ms\(^{-1}\) while that of light is 300 000kms\(^{-1}\). How far (to the nearest meter) from the center of a thunderstorm is an observer who hears a thunder 2s after a lightning flash?

A170m

B340m

C600m

D680m

View Explanation & Discuss

Question 1005

jamb 1988

Which of the following factors affects the speed of sound in air? i. Temperature ii. pressure iii. Frequency

Ai only

Bii only

Ci and ii only

Dii and iii only

View Explanation & Discuss

Question 1006

jamb 1988

A note is called an octave of another note when

Aits frequency is twice that of the first note

Bits frequency is half of the first note

Cthe notes have the same fundamental frequency

Dits periodic time is twice that of the first note

View Explanation & Discuss

Question 1007

jamb 1988

A piano wire 0.5m long has a total mass of 0.01kg and is stretched with a tension of 800N. Calculate the frequency of the wire when it sounds its fundamental note

A200Hz

B100Hz

C4Hz

D2Hz

View Explanation & Discuss

Question 1008

jamb 1988

Which of the following properties is/are common to all waves? i. Diffraction ii. Refraction iii. Interference

Ai only

Bii only

Cii and iii

Di, ii, and iii

View Explanation & Discuss

Question 1009

jamb 1988

Which of the following media allow the transmission of sound wave through them i. Air. ii. Liquids. iii. Solids.

Ai and ii only

Bi and iii only

Cii and iii only

Di,ii and iii

View Explanation & Discuss

Question 1010

jamb 1988

When heat is applied to one end of a metal rod, the molecules at the other end soon begin to vibrate with greater amplitude than before because heat has been transferred by

Aradiation

Bconvection

Cconduction

Devaporation

View Explanation & Discuss

Question Navigator

Current

Physics Past Questions

Take a test

Custom CBT

JAMB CBT Simulator

WAEC CBT Practice 2026 Simulator

NECO CBT Practice 2026 Simulator

Past Questions

Question Navigator

MathsFaculty