Class 10 Science Physics Important Questions
1. All Ray Diagrams
2. Sky appear Blue, Black, Red
3. The far point of a myopic person is 80cm in front of the eye. What is the nature and power of lense required to correct the problem?
4. Reason behind advanced sunrise and delayed
5. Give functions of (i) Iris (ii) pupil
6. The absolute ref indices of glass and water are 4/3 respectively If the speed of light in glass is 2x10 power 8 m/s. Calculate the speed of light in vacuum.
7. A convex lens has a focal length of 10 cm At what distance from the lens should object be placed so that it give a real and inverted image 20cm away from the lens ? What would be the size of image if the object is 2cm hight? Draw RD
8. Give some uses of (I) convex lens (ii) Concave mirror (III) Convex mirror
9.difference between real and virtual images
10. Difference between dispersion and scattering of light
11. State joules law of heating
12. Difference between permanent magnets and electromagnetic
13. Difference between split rings and slip rings
14. Give an advantage and disadvantages of (I) AC. (II) DC
15. State the working principal of electric generater and electric motor
16. Give circuit symbol of (I) electric meter
17. What is over landing? Give advantage of Earthing.
1. All Ray Diagrams
2. Sky appear Blue, Black, Red
3. The far point of a myopic person is 80cm in front of the eye. What is the nature and power of lense required to correct the problem?
4. Reason behind advanced sunrise and delayed
5. Give functions of (i) Iris (ii) pupil
6. The absolute ref indices of glass and water are 4/3 respectively If the speed of light in glass is 2x10 power 8 m/s. Calculate the speed of light in vacuum.
7. A convex lens has a focal length of 10 cm At what distance from the lens should object be placed so that it give a real and inverted image 20cm away from the lens ? What would be the size of image if the object is 2cm hight? Draw RD
8. Give some uses of (I) convex lens (ii) Concave mirror (III) Convex mirror
9.difference between real and virtual images
10. Difference between dispersion and scattering of light
11. State joules law of heating
12. Difference between permanent magnets and electromagnetic
13. Difference between split rings and slip rings
14. Give an advantage and disadvantages of (I) AC. (II) DC
15. State the working principal of electric generater and electric motor
16. Give circuit symbol of (I) electric meter
17. What is over landing? Give advantage of Earthing.
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