SELECT * FROM question_mgmt as q WHERE id=6733 AND status=1 SELECT id,question_no,question,chapter FROM question_mgmt as q WHERE courseId=12 AND subId=16 AND chapterId=379 and ex_no='1' AND status=1 ORDER BY CAST(question_no AS UNSIGNED) CBSE Free NCERT Solution of 8th science Light gurmit wanted to perform activity 16 8 using a las

Question:

Gurmit wanted to perform Activity 16.8 using a laser torch. Her teacher advised her not to do so. Can you explain the basis of the teachers advise?

Answer:

Gurmit’s teacher advised her not to do so because laser torch can injure the retina of her friends and she may loss her eye sight permanently or temporarily. The intensity of laser light is very high.


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  • Answered by Ekta Mehta
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Taking Screenshots on your Samsung Galaxy M31s is very easy and quick.

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