Download App

Reflection of Light — Science STD 10 — Question

CBSE BoardEnglish MediumSTD 10ScienceReflection of Light3 Marks
Question
Between which two points of concave mirror should an object be placed to obtain a magnification of:
  1. −3
  2. +25
  3. −0.4
✓

Answer

  1. Between focus and centre of curvature.
  2. Between pole and focus.
  3. Beyond the centre of curvature

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 Reflection of Light→Reflection of Light — all question types→Science STD 10 question papers→CBSE Board STD 10 question papers→CBSE Board question paper generator→

Similar questions

Calculate the area of cross-section of a wire if its length is 1.0m, its resistance is $23 Ω$ and the resistivity of the material of the wire is $1.84\times10 Ω\ \text{m}.$
→
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.
→
Which type of lens is:
  1. A converging lens, and which is.
  2. A diverging lens? Explain your answer with diagrams.
→
What would your image look like if you stood dose to a large:
  1. Convex mirror?
  2. Concave mirror?
Give reasons for your answer.
→
Which uses more energy: a 250W TV set in 1 hour or a 1200W to aster in 10 minutes?
→
A lens of focal length 20cm is used to produce a ten times magnified image of a film slide on a screen. How far must the slide be placed from the lens ?
→
What is the difference between a good conductor and a poor conductor? Give two example of each.
→
At what distance from a concave mirror of focal length 10cm should an object 2cm long be placed in order to get an erect image 6cm tall?
→
Give the position, size and nature of image formed by a concave lens when the object is placed:
  1. Anywhere between optical centre and infinity.
  2. At infinit.
→
An object 2cm tall stands on the principal axis of a converging lens of focal length 8cm. Find the position, nature and size of the image formed if the object is:
  1. 12cm from the lens.
  2. 6 cm from the lens.
→