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Name two sources, each of infrared radia...

Name two sources, each of infrared radiations and ultraviolet radiations.

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(a) Infrared radiations are used in night vision cameras.
(b) Ultraviolet radiations are used for killing microbes and to sterilize medical instruments.
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ICSE-SAMPLE QUESTION PAPER 2-SECTION-B
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  5. A vibrating tuning fork is placed over the mouth of a burette filled w...

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  6. Define the power of a lens.

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  7. A child is using a spectacle with power of -2.5 D. What is meant by th...

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  8. Find the focal length of the lens used.

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  9. A man standing in front of a wall produces a sound and hears an echo a...

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  10. What characteristics should a fuse wire have?

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  11. Name two factors on which the internal resistance of a cell depends an...

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  12. In the circuit diagram given below, a cell of 9 V and internal resista...

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  13. In the circuit diagram given below, a cell of 9 V and internal resista...

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  14. In the circuit diagram given below, a cell of 9 V and internal resista...

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  15. In the circuit diagram given below, a cell of 9 V and internal resista...

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  16. Define latent heat of fusion of ice.

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  18. Two liquids A and B have specific heat capacities 2.5 Jg^(-1)""^(@)C a...

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  19. Two liquids A and B have specific heat capacities 2.5 Jg^(-1) ""^(@)C ...

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