मराठी

Name the type of mirror used in the following situation: Solar furnace Support your answer with reason. - Science

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प्रश्न

Name the type of mirror used in the following situation:

Solar furnace

Support your answer with reason.

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उत्तर

Concave Mirror: This is because for solar furnaces, we use a concave mirror. Light from the sun, on reflection from the mirror, is concentrated at the focus of the mirror, producing heat.

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पाठ 10: Light – Reflection and Refraction - Exercises [पृष्ठ १८६]

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एनसीईआरटी Science [English] Class 10
पाठ 10 Light – Reflection and Refraction
Exercises | Q 8.3 | पृष्ठ १८६

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संबंधित प्रश्‍न

Explain the following term related to spherical lenses:- principal focus


Image formed by a convex ______ is always virtual and smaller in size.


When a spherical mirror is held towards the sun and its sharp image is formed on a piece of a carbon paper for some time, a hole is burnt in the carbon paper. 

 What is the advantage of using a carbon paper rather than a white paper?


Write the mirror formula. Give the meaning of each symbol which occurs in it.


The image formed by a convex mirror is of size one third the size of object. How are u and v related?


A concave mirror forms a virtual image of size twice that of the object placed at a distance 5 cm from it.

Find : (a) the focal length of the mirror (b) position of image


The sun is seen before the sunrise and after the sunset.


An object forms a virtual image which is 1/8th of the size of the object. If the object is placed at a distance of 40 cm from the convex mirror, calculate:

  1. the position of the image
  2. the focal length of the convex mirror.

Select the correct option:

A mirror forms a virtual image (diminished) of an object, whatever be the position of object:


A person in front of a spherical mirror finds his image having a very small head, a fat body and legs of normal size. What are the shapes of three parts of the mirror?

An object is brought towards a concave mirror. How does the position and size of the image change?

Name the spherical mirror which can produce a real and diminished image of an object.

Define pole of a mirror.

What is a mirror formula?


Define linear magnification produced by a mirror?


Complete the following diagrams shown in the below figure by drawing the reflected ray for each incident ray.


A concave mirror can be used to produce a parallel beam of light. Draw a ray to illustrate this.


Complete the following diagrams shown in the below figure by drawing the reflected ray for each incident ray.


The spherical mirror used in a beauty parlour as make-up mirror is _______.


How tall does a mirror have to be to fit an entire person’s body?


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