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प्रश्न
State one practical use of a concave mirror.
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उत्तर
- Concave mirrors are used in reflecting microscopes.
- Concave mirrors are used in shaving.
- Concave mirrors are used in makeup glasses.
- Concave mirrors are used in an ophthalmoscope.
Notes
Students should refer to the answer according to their questions.
संबंधित प्रश्न
An image which can be obtained on a screen is called a ______ image.
Give one use each of a concave and a convex mirror.
The letter F is placed in front of a plane mirror:
What is the name of the phenomenon involved?
Draw a ray diagram to show the formation of image of an object kept in front of a convex mirror. State three characteristics of the image.
When an object of height 1 cm is kept at a distance 4 cm from a concave mirror, its erect image of height 1.5 cm is formed at a distance 6 cm behind the mirror. Find the focal length of mirror, by drawing.
Answer the following question.
Write the modification in the curvature of the eye lens which enables us to see the nearby objects clearly?
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:
- the position of the image
- the focal length of the convex mirror.
Complete the following diagrams shown in the below figure by drawing the reflected ray for each incident ray.
