Question

Ques.1)State the second law of reflection.(1)

Ques. 2) What is a kaleidoscope? (1)

Ques. 3) State the function of a periscope in a submarine(1)

Ques. 4) What is reflection of light?Draw the diagram explaining first law of reflection(3)

Ques. 5) Differentiate between regular and diffused reflection. (3)

Ques. 6) State three uses of a plane mirror. (3)

Ques. 7) List the main characteristics of the image formed by a plane mirror (2)

Ques. 8) What is lateral inversion?(2)

Ques. 9) Explain multiple reflection in your words. (2)

Ques. 10) Calculate the number of images formed by a plane mirror kept at an angle of 20 degree to each other. (2)
Please answer all the Question

Answer 1

Answer:

1. According to the second law, the angle of reflection is always equal to the angle of incidence.
2. A toy consisting of a tube containing mirrors and pieces of coloured glass or paper, whose reflections produce changing patterns when the tube is rotated.
3. A periscope lets you look around walls, corners or other obstacles. Submarines have periscopes so that people inside can what is on the surface of the water.

Answer 2

Answer:

ans1- the normal, incident ray,and the reflected ray all lie in the same plane

ans4- rewrite lays of reflection

ans5- when the law of rflection not matches to the given reflection then this is diffuse reflection

ans6- plane mirror used as shaving mirror, makeup mirror or it is used as headlights

ans7- images form by plane mirror are same distance from mirror to obect

ans8- the part which we see in the mirror is lateral inversion