Question 181· Light: reflection· WAEC
All subjects
WAEC Physics questions
379 questions with answers and explanations. Tap an option to check yourself.
All topicsCapacitors · 10Change of state · 11Conduction of electricity through liquids and gases · 9Current electricity · 15Dispersion of light and colours · 10Elasticity · 11Electric cells · 9Electrical energy and power · 11Electromagnetic induction · 11Electrostatics · 9Elementary modern physics · 11Equilibrium of forces · 12Friction · 9Gas laws · 11Gravitational field · 11Heat transfer · 10Introductory electronics · 9Light: reflection · 11Light: refraction · 12Liquids at rest · 11Magnets and magnetic fields · 9Measurements and units · 12Motion · 22Optical instruments · 10Pressure · 11Quantity of heat · 11Scalars and vectors · 11Simple a.c. circuits · 9Simple machines · 11Sound waves · 11Temperature and its measurement · 10Thermal expansion · 11Waves · 14Work, energy and power · 14
- Explanation and discussion
Question 182· Light: reflection· WAEC
Light strikes a plane mirror with an angle of incidence of 30°. The angle of reflection is
Explanation and discussionQuestion 183· Light: reflection· WAEC
A convex mirror has a radius of curvature of 40 cm. Find its focal length.
Explanation and discussionQuestion 184· Light: reflection· WAEC
A concave mirror has a radius of curvature of 30 cm. Its focal length is
Explanation and discussionQuestion 185· Light: reflection· WAEC
A man stands 3 m in front of a plane mirror. How far is he from his image?
Explanation and discussionQuestion 186· Light: reflection· WAEC
An object is 30 cm from a concave mirror of focal length 10 cm. Find the image distance.
Explanation and discussionQuestion 187· Light: reflection· WAEC
A ray strikes a plane mirror at an angle of incidence of 35°. What is the angle between the incident and reflected rays?
Explanation and discussionQuestion 188· Light: reflection· WAEC
Two plane mirrors are inclined at 60° to each other. How many images of an object placed between them are formed?
Explanation and discussionQuestion 189· Light: reflection· WAEC
An object stands 3 m in front of a plane mirror. How far is the object from its image?
Explanation and discussionQuestion 190· Light: reflection· WAEC
An object is 20 cm in front of a plane mirror. The distance between the object and its image is
Explanation and discussionQuestion 191· Light: refraction· WAEC
The critical angle for glass of refractive index 1.5 is about
Explanation and discussionQuestion 192· Light: refraction· WAEC
A ray of light passing from air into glass bends
Explanation and discussionQuestion 193· Light: refraction· WAEC
A coin at the bottom of water 4 m deep appears 3 m deep. The refractive index of the water is
Explanation and discussionQuestion 194· Light: refraction· WAEC
A swimming pool looks shallower than it really is because of
Explanation and discussionQuestion 195· Light: refraction· WAEC
Light passes from air into glass of refractive index 1.5. If the angle of incidence is 30°, the sine of the angle of refraction is
Explanation and discussionQuestion 196· Light: refraction· WAEC
The power of a lens of focal length 25 cm is
Explanation and discussionQuestion 197· Light: refraction· WAEC
The bending of light as it passes from one medium into another is
Explanation and discussionQuestion 198· Light: refraction· WAEC
A converging lens of focal length 10 cm forms an image of an object placed 15 cm from it at
Explanation and discussionQuestion 199· Light: refraction· WAEC
Find the critical angle for water of refractive index 4/3.
Explanation and discussionQuestion 200· Light: refraction· WAEC
A coin lies at the bottom of water 12 cm deep. If the refractive index of water is 4/3, how deep does the coin appear?
Explanation and discussion
Practise Physics like the real exam. A timed CBT, your score, and the topics to fix.
Start a Physics test