Which type of mirror can form a real image?

Give two uses each of a concave and a convex mirror

State two differences between a convex and a concave lens.

What is a virtual image? Give one situation, where a virtual image is formed.

Find out the letters of English alphabet or any other language known to you in which the image formed in a plane mirror appears exactly like the letter itself. Discuss your findings.

State the characteristics of the image formed by a plane mirror.

An erect and enlarged image of an object is formed on a screen. Explain how this could be possible.

State in brief what we can demonstrate by rotating Newton's colour disc very fastly.

Mention the type of image formed on a cinema screen.

Name the type of lens which diverges a beam of parallel rays of light

Briefly mention what makes things visible to us.

Name the colours include in the composition of sunlight.

One day, Ramesh's friend was performing their respective experiments given by their teacher. While sitting in the practical lab instead of performing experiment, Ramesh was playing with his meter scale. All the sudden, he held the scale in his hand and started moving in front of tubelight, then he observed the seven colours of white light. After sometimes, he got scolded by his lab teacher for not performing the experiment.
(a) Give the name of phenomenon that leads to the formation of band of seven colours.
(b) Name the constituent colours of white light.
(c) Mention the values shown by Ramesh here.

Namit was driving a car and suddenly became aware of a loud sound coming from behind. He looked through his rear view mirror and saw an ambulance. He recalled reading that such emergency vehicles often have their name written in the mirror (AMBULANCE) or writing,
i.e. 3 J VI A J U 8 M A.
He quickly made way for the ambulance, murmuring a quick prayer for the speedy recovery of the patient inside the ambulance.
(a) Name the type of mirror which is used as a rear view mirror and why?
(b) Mention values did Namit exhibit.

It was observed that when the distance between an object and a lens decreases, the size of the image increases. What is the nature of this lens? If you keep on decreasing the distance between the object and the lens, will you still able to obtain the image on the screen? Explain

A rainbow can be seen in the sky

You are provided with a concave mirror, a convex mirror, a concave lens and a convex lens To obtain an enlarged image of an object, you can use either 

A virtual image

Which of the following always diverge light rays?

Boojho and Paheli were given one mirror each by their teacher. Boojho found his image to be erect and of the same size, whereas Paheli found her image erect and smaller in size. This means that the mirrors of Boojho and Paheli respectively are