Question

got these three questions
please explain these three numbers
ADVANCE THANK YOU :)
@Abhisar

Answer 1

that's my last sets of question for today :)

Answer 2

Q.1
Do you know the meaning of all the terms given in the options ?

Answer 3

some of them

Answer 4

i got some ideas

Answer 5

Like do you know refraction, reflection ?

Answer 6

What does plane mirror does ?
refracts or reflects light ?

Answer 7

yeah

Answer 8

i think
1. d
2. b
3. e

Answer 9

1 \(\huge\checkmark\)

Answer 10

Q.2 is not clear...not able to see it completely. What is the given angle of incidence ?

Answer 11

of 40* sorry

Answer 12

3 \(\huge\cancel{\bcancel{~}}\)

Answer 13

oh its d its 2m behind the mirror i was thinking the total distance

Answer 14

yes, the image formed by a plane mirror is always virtual and is as much behind it as the object is. So here the image will be formed `2 m behind the mirror` and will be `virtual.`

Answer 15

is no 2 correct

Answer 16

any explanation for 1 and 2 ?

Answer 17

Q.2 is vague !
Angle of refraction will be equal to 40° only if the ray falls on optical center.

Answer 18

getting it ?

Answer 19

what's your explanation on number 1

Answer 20

I thought i know it.

Answer 21

Almost every surface reflect light to some extent (That is why we are able to see them). Rough or unpolished surface reflect it irregularly while polished and smooth surface reflect light regularly.

Answer 22

its just regular reflection because its a plane mirror?

Answer 23

yes, plane mirror has polished surface which reflects the light ina synchronus manner or regular manner.

Answer 24

Since the angle of reflection is always measured to the 'normal' or perpendicular at the point of incidence it will always be = angle of incidence WHEREVER it strikes the mirror