7
4. How can you make a convex minor?
5. What are concave and convex lanses
6. What is Newton's colour disc?
H. Long Answer Type Questions
1. State the characteristics of the image formed by
a plane mirror
2. Describe a simple experiment to show that light
travels in a straight line
3. The colours of the spectrum can be combined
so as to give the allect of white light How can
you demonstrate 117
Do You
Erlere
1. File
Play &
HOTS
Answers
Explanation:
4.
convex mirror or diverging mirror is a curved mirror in which the reflective surface bulges towards the light source. Convex mirrors reflect light outwards, therefore they are not used to focus light.
5.
concave lens is thinner in the middle and thicker at the edges. A convex lens is thicker in the middle and thinner at the edges. Also known as. It is also known as Diverging Lens. It is also known as Converging Lens.
6.
The Newton disc, also known as the Disappearing Colour Disc, is a well-known physics experiment with a rotating disc with segments in different colors (usually Newton's primary colors: red, orange, yellow, green, blue, indigo, and violet or ROYGBIV) appearing as white (or off-white or gray) when it spins very fast.
H..
2.
Two experiments are used to demonstrate how light travels in straight lines. In the first example, the presenter arranges three pieces of card, with holes in, in an uneven line. The light stops and cannot travel through all three cards. When she arranges the holes in a straight line, the light can travel through.
Answer:
jjsndhejeje
ye ha pagal