Download App

Light – Reflection and Refraction — Science STD 10 — Question

CBSE BoardEnglish MediumSTD 10ScienceLight – Reflection and Refraction3 Marks
Question
What is the difference between regular reflection of light and diffuse reflection of light? What type of reflection of light takes place from:
  1. A cinema screen.
  2. A plane mirror.
  3. A cardboard.
  4. Still water surface of a lake
✓

Answer

In regular reflection, a parallel beam of incident light is reflected as a parallel beam in one direction; while in diffuse reflection, a parallel beam of incident light is reflected in different directions.
  1. Regular reflection.
  2. Regular reflection.
  3. Diffuse reflection.
  4. Regular reflection.

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

More "Answer the questions.[Phy-3M]" from Light – Reflection and Refraction→Light – Reflection and Refraction — all question types→Science STD 10 question papers→CBSE Board STD 10 question papers→CBSE Board question paper generator→

Similar questions

Two exactly similar electric lamps are arranged (i) in parallel, and (ii) in series. If the parallel and series combination of lamps are connected to 220V supply line one by one, what will be the ratio of electric power consumed by them?
→
List three ways in which the magnetic field strength of a current-carrying solenoid can be increased?
→
Determine how far an object must be placed in front of a converging lens of focal length 10cm in order to produce an erect (upright) image of linear magnification 4.
→
The radius of curvature of a concave mirror is 50cm. Where should an object be placed in the mirror, so as to form its image at infinity? Justify your answer.
→
An object of height 4.25mm is placed at a distance of 10cm from a convex lens of power +5D. Find:
  1. Focal length of the lens, and
  2. Size of the image.
→
With the help of a labelled diagram, explain why a tank full of water appears less deep than it actually is.
→
If the charge on an electron is 1.6 × 10 coulombs, how many electrons should pass through a conductor in 1 second to constitute 1 ampere current?
→
State the laws of refraction of light. Explain the term ‘absolute refractive index of a medium’ and write an expression to relate it with the speed of light in vacuum.
→
Define principal axis, principal focus and focal length of a convex lens.
→
Two coils A and B of insulated wire are kept close to each other. Coil A is connected to a galvanometer while coil B is connected to a battery through a key. What would happen if:
  1. A current is passed through coil B by plugging the key?
  2. He current is stopped by removing the plug from the key?
Explain your answer mentioning the name of the phenomenon involved.
→