Question

Optics help!
Anyone?

Answer 1

Optics helped!
No one?

Answer 2

O_O

Answer 3

Question tuh type kar!

Answer 4

A person wears glasses of power -2.5 D .What is the far point of the person without the glasses?

Answer 5

you have this in 10th? O_O

Answer 6

yeah
why ya had this in 5th?

Answer 7

No.
I had this in LKG.

Answer 8

LOL Maharashtra is super advanced then...so u must know it like ABC so tell me. how do we do it sir?

Answer 9

What are the options?

Answer 10

no options..
It's HCV question buddy
But nonetheless I'll make them up for you..
10 cm
30 cm
50cm
40cm

Answer 11

yep

Answer 12

I think its 1/-2.5

Answer 13

Not really sure...havent mastered this topic as yet..

Answer 14

but that wouldn't give us 40 cm....it would be 4 m:'(

Answer 15

@mayankdevnani

Answer 16

Ayyy fam x'D

Answer 17

40 cm ?

Answer 18

yeah mayday

Answer 19

is it correct ?

Answer 20

yeah

Answer 21

*hears the bell ringing* :)

Answer 22

:o
what bell?
like school bell?x'D

Answer 23

school ka ghanta nah be

Answer 24

abey toh kahe k ghnta?/
@mayankdevnani how didja get it?

Answer 25

aye chori
kahe aisi Hindi m bat kar ti re ,huh?

Answer 26

oye chore
hmri hindi esi hi haigi....hum gao mein rhet hain...x'D

Answer 27

mayank bhaiya suspense khol bhi do ab

Answer 28

abe minku tu kabse type kar rha h

essay likh rha h kya?

Answer 29

we have given power
so we can easily find focal length
negative sign means it's near sightedness ig
use lens formula :-
\[\large \bf \frac{1}{v}-\frac{1}{u}=\frac{1}{f}\]
u is technically `zero`cuz we gotta find far point so initially we take u as our initial position
so,after plugging u=0,we get
v=f=40 cm(excluding sign)

Answer 30

Hope it helps :)

Answer 31

1/u
if u = 0 then the expression is infinity ...kab kya

Answer 32

okay samjha

lens makers equations

Answer 33

flutter :(

Answer 34

Okay so u are trying to say that we consider the object to be at infinity?

Answer 35

bhai galat likh diya :(

far point means infinity
so 1/v tends to zero
so -1/u=1/f
u=-f
u=40 cm

Answer 36

lifesaver saving your life as always ;)

Answer 37

I was doing the same thing but ig there was some calc problem
thanks anyway:)

Answer 38

np