Question

In The Last Year Board Examination, Rahul Were Asked A Question Where He Had To Choose The Statement Which Was/Were Incorrect? Will You Be Able To Answer This Question? *
1 point
[A]. Large concave mirrors are used in the field of solar energy to focus sun’s ray for heating solar furnaces.
[B]. Concave dishes are used in TV Dish antenna to receive TV signals from the distant communication satellites.
[C]. Concave mirrors are used as doctor’s head-mirror to focus light coming from a lamp on to the body parts of a patient (such as eyes, ear etc.) to be examined by the doctor.
[D]. Concave mirrors are not used in torch or vehicle headlights.​

Answer 1

Answer:

all are correct

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