Question 1 :
Mention whether regular or diffused reflection will take place when a beam of light strikes on White Chalk powder that is used in school?

Question 3 :
How many images of a candle will be formed if it is placed between two parallel plane mirrors separated by 40 cm?

Question 4 :
<img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b1d078f59b460d7261f2fa.jpg' /> Boojho planned an activity to observe an object A through pipes as shown in the above figure, so that he could see objects which he could not directly see. How many mirrors should he use to see the objects?

Question 5 :
What is the angle of incidence of a ray if the reflected ray is at an angle of $90^{\circ}$ to the incident ray?

Question 6 :
The angle between incident ray and reflected ray is $60^\circ$. What is the value of angle of incidence?

Question 8 :
At the junction of the optic nerve and the retina, there are no sensory cells, so no vision is possible at that spot. This is called the _________?

Question 9 :
How many images of a candle will be formed if it is placed between two parallel plane mirrors separated by 40 cm?

Question 10 :
<img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b1d0faf59b460d7261f3a0.PNG' /> Refer to the above figure. Boojho stands at A just on the side of a plane mirror as shown in figure. Can he see the image of objects situated at P, Q and R?

Question 11 :
Where does the lens of our eye form the image of an object?

Question 12 :
An interesting feature of a kaleidoscope is that you will never see the same pattern again. Is it TRUE OR FALSE?

Question 13 :
The incident ray, the normal at the point of incidence and the reflected ray all lie in the same plane. This law is known as ____________ ?

Question 17 :
<img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b1d0faf59b460d7261f39f.PNG' /> Refer to the above figure. Can Boojho at C see the position of the image of an object situated at A in the plane mirror ?

Question 18 :
<img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b1d0f9f59b460d7261f39e.PNG' /> Refer to the above figure. Boojho stands at A just on the side of a plane mirror as shown in figure. Can he see himself in the mirror?

Question 19 :
The angle between the normal and the reflected ray is known as the ___________ ?

Question 20 :
<img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b1d0dcf59b460d7261f379.JPG' /> From the above image, Can Boojho at C see this image?

Question 21 :
The angle between the normal and incident ray is called the ___________ ?

Question 22 :
<img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b1d07bf59b460d7261f2fe.jpg' /> Light is falling on surface $S_1$, $S_2$, $S_3$ as shown in the above figure. Surfaces on which the angle of incidence is equal to the angle of reflection is/are

Question 24 :
Mention whether regular or diffused reflection will take place when a beam of light strikes on a Piece of paper?

Question 25 :
A person 1 m in front of a plane mirror seems to be _______ m away from his image.