Subject :NSO Class : Class 7
Subject :NSO Class : Class 7
Ans 2:
Class : Class 8
Law of reflection:angle of incidence= angle of reflection This formula is only used when the angles are measured from the normal to the ray and not from the ray to the mirror. In this diagram we see that the angle is measured from the ray to the mirrot .The normal measures 90° so we need to subtract 90° from 35° to get the angle of incidence which is 55° . We now that angle of incidence= Angle of reflection hence the answer will be 55°
Post Your Answer
Subject :NSO Class : Class 7
Consider the following statements and select the correct option which correctly identifies true (T) and false (F).
(i) Concave mirror is used for side view mirror in vehicles.
(ii) The image formed by a plane mirror is upright.
(iii) When a person moves closer to a plane mirror, the size of his image in the mirror remains the same.
(iv) In the case of reflection, virtual image of the object is formed on the same side as the object.
(i) | (ii) | (iii) | (iv) | |
A | T | F | F | T |
B | F | T | T | F |
C | F | T | F | T |
D | T | F | T | F |
Ans 3:
Class : Class 9
if a person moves closer to the plane miror , ,would not size of the imagge become larger ,??????? WHy the statement saying that if a eprson moves near to a plane mirror , the image of the person would emain same in size??? SOF , please correct the answer of the question.. I am finding too many wrong quesions nowadays
Post Your Answer
Subject :NSO Class : Class 6
Post Your Answer
Subject :NSO Class : Class 6
Post Your Answer
Subject :NSO Class : Class 6
Post Your Answer
Subject :NSO Class : Class 8
Post Your Answer
Subject :NSO Class : Class 8
Post Your Answer
Subject :NSO Class : Class 8