Answer: the amount of work will increase.
Explanation: ur welcome
Answer:
B
Explanation:
a force acting upon an object increases that objects acceleration
Answer:
Option C and D only
Explanation:
Option A is incorrect because refractive index of a material is the ratio of speed of light in vacuum to the speed of light in a any given medium
Option B is correct as the speed of light in vacuum is always greater than the speed of light in any given medium.
Option C is correct
Option D is incorrect
Option E is incorrect because the denser the medium the more is the refractive index. Water is denser than air, hence it should have more refractive index as compared to that of air.
Answer:
◆ See the attachment photo.
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Answer: Approximately 65% from what i have learnt.
