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Physics 10th Class English Medium Chapter 3
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Question 1 of 12
1. Question
Snell’s law is stated as:
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Question 2 of 12
2. Question
Focal length for concave mirror is :
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Question 3 of 12
3. Question
An object of placed at he centre of curvature of a concave mirror. The image produced by the mirror is located:
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Question 4 of 12
4. Question
An object is 14 cm is front of a convex mirror. The image is 5.8 cm behind the mirror. What is the focal length of the mirror?
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Question 5 of 12
5. Question
Which of the following is not processing:
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Question 6 of 12
6. Question
The critical angle for a beam of light passing from water into air is 48.8 degrees. This mean that all light rays with an angle of incidence greater than this angle will be:
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Question 7 of 12
7. Question
A device which has two ways communication is:
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Question 8 of 12
8. Question
For a normal person audible frequency range for sound wave lies between:
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Question 9 of 12
9. Question
Snell’ law is:
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Question 10 of 12
10. Question
Hard disk is made of:
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Question 11 of 12
11. Question
Which form of energy is sound:
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Question 12 of 12
12. Question
The ray of the light after reflection from concave mirror passes through:
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