Answer:
When the object is placed at the focus the image is formed at infinity.
Explanation:
When a ray passes through focus and incident on a concave mirror then it will travel parallel to principal axis after reflection.Hence the image is formed at infinity.
Answer: D.
Explanation: Orange, at 3 meters per second if you calculate the net force being applied to the system.
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Answer:
3 electron hai bro of puch mujhe sab aata h
The density is 4.76 gcm^-3
and if mass is in kg then density is equal to 4.76*10^-3