Classroom

Physics Past Questions

Updated description

4,719 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

4,719 questions

Question 1 of 20 4,719 total questions

Question 2061

jamb 1989

When a radiation strikes a metal surface, electrons may be ejected from the metal. The maximum kinetic energy which may be acquired by an ejected electron depend on the

Aintensity of the radiation

Bsource of the radiation

Cwavelength of the radiation

Ddetection device of the electron

View Explanation & Discuss

Question 2062

jamb 1989

The electrochemical equivalent of silver is 0.0012gC^-1. If 36.0g of silver is to be deposited by electrolysis on a surface by passing a steady current for 5.0mins, the current must be

A6000A

B100A

C10A

D1A

View Explanation & Discuss

Question 2063

jamb 1989

An ammeter of resistance 1.0\(\Omega\) has a full-scale deflection of 50mA. Determine the resultant full-scale deflection of the meter when a shunt of 0.0111\(\Omega\) is connected across its terminals.

A400mA

B450mA

C500mA

D550mA

View Explanation & Discuss

Question 2064

jamb 1989

A calibrated potentiometer is used to measure the e.m.f. of a cell because the

Ainternal resistance of a cell is small compared with that of the potentiometer

Bpotentiometer has a linear scale

Cpotentiometer takes no current from the cell

Dresistance of the potentiometer is less than that of a voltmeter

View Explanation & Discuss

Question 2065

jamb 1989

Three resistors, with substances 250\(\Omega\), 500\(\Omega\) and 1k\(\Omega\) are connected in series. A 6V battery is connected to either end of the combination. Calculate the pot3ential difference between the end of the 250\(\Omega\) resistor.

A0.20V

B0.86V

C1.71V

D3.43V

View Explanation & Discuss

Question 2066

jamb 1989

The resistance of a 5m uniform wire of cross-sectional area 0.2 x 10-6m2 is 0.425. What is the resistivity of the material of the wire?

A1.10 x 10^-6\(\Omega\)m

B4.25 x 10^-6\(\Omega\)m

C2.40 x 10^-7\(\Omega\)m

D1.70 x 10^-8\(\Omega\)m

View Explanation & Discuss

Question 2067

jamb 1989

A bar magnet is most effectively demagnetized by

Aplacing it in a N - S position and hitting it with a hammer

Bsubjecting it to an electric current from a battery

Cbringing its north pole in contact with the north pole of a very strong magnet

Dheating the magnet

View Explanation & Discuss

Question 2068

jamb 1989

When a number of identical small magnets are arranged in a line, the strength of the resultant magnet

Aia largest when they are arranged end to end

Bis greatest when they are arrangedparallel with like poles adjacent to each other

Cdepends only on the number of magnets provided they arev parallel

Dis greater when the magnets are arranged on a wooden surface than on a metaln surface

View Explanation & Discuss

Question 2069

jamb 1989

Two insulated charged spheres of different sizes and carrying opposite charges are connected together by a metallic conductor. Current will flow from one sphere to the other until both sphere

Acarry the same magnitude and sign of charge

Bare at the same potential

Care at the same temperature

Dare of the same size

View Explanation & Discuss

Question 2070

jamb 1989

Which of the following pairs is NOT part of the electromagnetic spectrum? i. Radio waves. ii. Beta rays. iii. Gamma rays. iv. Alpha rays

Ai and ii

Biii and iv

Ci and ii

Dii and iv

View Explanation & Discuss

Question 2071

jamb 1989

Dispersion of light by a glass prism is due to the

Adifferent colours of the glass

Bdifferent speeds of the various colours in glass

Cdefects in the glass

Dhigh density of glass

View Explanation & Discuss

Question 2072

jamb 1989

When a yellow card is observed through a blue glass, the card would appear.

Ablack

Bgreen

Cred

Dwhite

View Explanation & Discuss

Question 2073

jamb 1989

A far sighted person cannot see objects that are less than 100cm away. If this person wants to read a book at 25cm, what type and focal length of lens does he need?

Aconvex, 20cm

Bconcave, 20cm

Cconvex, 33cm

Dconcave, 33cm

View Explanation & Discuss

Question 2074

jamb 1989

The plane mirrors in a kaleidoscope are usually placed

Aat an angle of 60^o

Bparallel to one another

Cperpendicular to one another

Dat an angle of 45^o

View Explanation & Discuss

Question 2075

jamb 1989

The magnification of the image of an object placed in front of a convex mirror is \(\frac{1}{3}\). If the radius of curvature of the mirror is 24cm, what is the distance between its object and its image?

A8cm

B16cm

C24cm

D32cm

View Explanation & Discuss

Question 2076

jamb 1989

Light of wavelength 5000 x 10^-8cm travels in free space with a velocity of 3 x 10⁸ms^-1. What is its wavelength in glass of refractive index 1.5?

A3333 x 10^-8cm

B5000 x 10^-8cm

C6666 x10^-8cm

D750010^-8cm

View Explanation & Discuss

Question 2077

jamb 1989

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

A10Hz

B20Hz

C1000Hz

D5780Hz

View Explanation & Discuss

Question 2078

jamb 1989

When the tension in a sonometer wire is doubled, the ratio of the new frequency to the initial frequency is?

A\(\frac{1}{\sqrt2}\)

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

C\(\sqrt2\)

View Explanation & Discuss

Question 2079

jamb 1989

A vibrator of frequency 60Hz is used in generating transverse stationary waves in a long thin wire, If the average distance between successive nodes on the wire is 45cm, find the speed of the transverse waves in the wire.

A27ms^-1

B54ms^-1

C90ms^-1

D108ms^-1

View Explanation & Discuss

Question 2080

jamb 1989

From the kinetic theory of gases, temperature is a

Aform of energy and is proportional to the total kinetic energy of the molecules

Bform of energy and is proportional to the average kinetic energy of the molecules

Cphysical property and is proportional to the total kinetic energy of the molecules

Dphysical property and is proportional to the average kinetic energy of the molecules

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