Question 1 :
An image formed by a __________ mirror is always of the same size as that of the object.

Question 2 :
Light takes 8.5 minutes to reach the earth from the sun. What is the distance between the sun and the earth ? Velocity of light is $3\times10^{10}$ cm per second.

Question 5 :
<img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b1cb7df59b460d7261ec46.PNG ' /> In the above figure, a jug is placed facing a plane mirror. What is the distance between image of jug and mirror?

Question 7 :
Image may be real, virtual and magnified or diminished in _______ mirror.

Question 8 :
Boojho thinks that objects are visible only when light reflected from them reaches our eyes. Is he correct?

Question 9 :
<img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b1cbe2f59b460d7261ecc0.jpg' /> A person stands in front of a plane mirror and looks at his image. Next, he raises his left hand. Which hand does the image raise as shown in the above figure?

Question 10 :
If the reflecting surface is on the outside, the mirror is called ____.

Question 12 :
<img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b1cbeaf59b460d7261eccb.jpg' /> A person takes a stainless steel spoon. He brings the outer side of the spoon near his face and looks into it as shown in the above figure. Is this image different from what he will see in a plane mirror?

Question 14 :
Mirror which has reflecting surface curved outwards is called __________ .

Question 15 :
Give one use each of a concave and a convex mirror.

Question 17 :
When the object is placed very close to the lens, the image formed is virtual, erect and magnified. The lens is:

Question 18 :
When a ray of light falls on the surface of any mirror it bounces back in the same medium. This is called

Question 19 :
An image which can be obtained on a screen is called a ___ image.

Question 22 :
____ usually appears when sun is low in the sky after rains.

Question 23 :
If the reflecting surface is on the inner side, the mirror is called ____.

Question 26 :
Virtual, erect and diminished in size images are formed by _______ mirror.

Question 28 :
An image which can be obtained on a screen is called a __________ image.

Question 29 :
Which one of the following is used as rear view mirror in cars and scooters?

Question 30 :
If standing before a plane mirror you touch your nose with your left hand, right hand of your image will touch your nose. What is this phenomenon called?