Question

10. A large converging mirror has a radius of curvature of 1.5m . A person stands 10m in front of the mirror. Where is the person’s image?
11. An object 5cm high is placed at a distance of 10cm from a convex mirror of radius of curvature 30cm. Find the nature, position and size of the image?
12. An object 2.5cm high is placed at a distance of 25 cm from a diverging mirror of focal length 20cm. Find the nature, position and size of the image?
13. A convex mirror of a car has a radius of curvature of 3m. If a bus is located at a distance of 5m from the mirror, find the position and nature of the image?
14. A beam of light passes from air into a substance ‘X’. if the angle of incidence is 720 and angle of refraction is 400. Calculate the refractive index of ‘X’ (given sin 720 = 0.951 and sin 400 = 0.642
15. Light enters from air into a glass having refractive index 1.5. What is the speed of light in glass?
16. If the refractive index of light going from air to water is 1.33. What will be the refractive index for light going from water to air?
17. A convex lens has a focal length of 20cm. Where should an object be placed in front of it to an image which is real, inverted and same size as the object?
18. An object is placed at the following distances from a convex lens of focal length 10cm: (a) 8 cm (b) 15cm (c) 20cm (d) 25cm
Which position of the object will produce
1. A diminished real image?
2. A magnified real image?
3. A magnified virtual image?
4. An image of the same size as the object?
19. An object 7cm high is placed at a distance of 12cm from a convex lens of focal length 8cm. Find the nature, position and height of the image?
20. . An object is placed at a distance of 50cm from a concave lens of focal length 20cm. Find the nature, position of the image?
21. A thin lens has a focal length of -25cm. What is the power of the lens and its nature?

22. The power of lens is (a)+2

Answer 1

Answer:

10-in the mirror

Explanation:

you said that where is the man as e