write true Or false
please answer
Answers
Answer:
Here are your answers:-
1) false!
convex mirrors are used as rear view mirrors
2) true!
3) false!
curved lens are used in spectacles
4) true!
5) false!
convex mirror has outer reflecting surface.
6) false!
convex lens is thicker at centre than at edges.
Question :-
Write true or false:-
Questions attached in the image.
____________________
Answer :-
1. Concave mirrors are used in automobiles as rear view mirrors.
Answer :- False. Convex mirrors enable the driver to view much larger area than a plane mirror. The images produced are erect and their size is much smaller than the object. Hence, it is used as a rear view mirror in automobiles.
2. A Convex mirror always forms a virtual and erect image.
Answer :- True. Image formed by convex mirror is always.Virtual erect and diminished irrespective of object position.
3. Curved mirrors are used in spectacles to correct the short-sightedness and long-sightedness.
Answer :- False. Curved lenses are used in spectacles to correct the short-sightedness and long-sightedness.
4. A real image is the one that can be projected on a screen.
Answer :- True. A real image is the one that can be projected on a screen.
5. Concave mirror has the outer reflecting surface.
Answer :- False. Concave mirrors have the inner reflecting surface.
6. Concave lenses are thicker at the centre than the edges.
Answer :- False. Convex lenses are thicker at the centre than the edges.