alleryStart learning →A ray makes 25 degrees with a plane mirror's surface. What angle does it make with the reflected ray?
A50 degrees
B65 degrees
C130 degrees
D25 degrees
Answer & Solution
Correct answer: C. 130 degrees
The angle of incidence is 90 - 25 = 65 degrees, equal to the angle of reflection, so the rays are 65 + 65 = 130 degrees apart.
Keep practising Light
Browse all Light questions for Olympiad (Class 7), or explore more Science topics.
Related questions
Why do night animals' eyes shine in a torch beam?How are the incident ray, reflected ray and normal related?By the laws of reflection, where do the incident ray and reflected ray lie relative to theLight hits the surface of water. Which statement is correct?Compared with a mirror, a glass window reflects light in what way?What does an ordinary household mirror usually have behind its glass sheet?An echo is an example of which wave behaviour?Reflection means a wave does what at the boundary between two media?