simple pbm

A lens of focal length 20.0cm and aperture radius 2.0cm is placed at a distance 30.0cm from a point source of light.On the other side a screen is placed at a distance 50.0cm from the lens.The radius of spot of light formed on screen is __________

35 Answers

3
msp ·

thorai in tamil means A male General
thori is not a word in tamil.but sometimes it will be used while talking friendly

11
Anirudh Narayanan ·

Language = Tamil

Translation fr #11:

"In the words of Vadivelu 'We are very childish, aren't we?'"

Translation fr #12:

"Look at that. Thori is speaking in hindi

If thorai denotes men then thori denotes women [3]"

11
Anirudh Narayanan ·

In short sky, sankara wants you to avoid talking in hindi as much as you can. [1]

1
skygirl ·

who is thori ? :P

3
msp ·

ok sky thanx for ur soln
Aragorn nandri(tx)

1
skygirl ·

oh i am so sorry...

shit.

i again forgot :(

jus a slip of tongue ......

3
msp ·

ok sky i am really trying to speak hindi whenever i got leisure

1
skygirl ·

hehe :)

11
Anirudh Narayanan ·

Free Tamil tuitions Conducted By Sankara, me and Ramkumar at just Re.1 per Tamil word learnt [4]

1
skygirl ·

okie...

did u get that one??

it was simple only... i think u had prob with the aperture radius rite ?

3
msp ·

at tpv.com

3
msp ·

tpv-----Tamil Pesa Vanga

translation part shud be done only by aragorn

1
skygirl ·

how will you take the money aragorn sir ?? :P

11
Anirudh Narayanan ·

I will take the money out of my own pocket[4]
As I already said, it was for free [4]

1
skygirl ·

okie.......... [9]

3
msp ·

u can get free tamil text books at the tamil nadu gov website.

1
skygirl ·

i will surely start learning it...

but afetr some 4 months.. :)

1
skygirl ·

i will surely start learning it...

but afetr some 4 months.. :)

3
msp ·

vadivel solramadhri chinna pillathanamave pesuromla

3
msp ·

please help me by drawing a diag for the question.

1
skygirl ·

i will post it...

hmm... in the evening....

3
msp ·

ok sky i will get u in the evening.

1
skygirl ·

is the ans 0.3333333333333333333 cm ??

then i will post ans...

or else [3]

3
msp ·

actually sky u r ans is rong

the original ans is 0.333333333333333333333333...........cm :)

11
Anirudh Narayanan ·

[9][9][9][9][9][9][9][9][9][9][9][9][9][9][9][9][9][9][9][9][9][9][9][9][9][9][9][9][9][9][9][9][9][9][9][9][9][9][9][9][9][9][9][9][9][9][9][9][9][9][9][9][9][9][9][9][9][9][9][9][9][9][9][9][9][9][9][9][9][9][9][9][9][9][9][9][9][9][9][9][9][9][9][9]

1
skygirl ·

[3]

wait posting soln jus nowwww........

is baar tumhara tym nahi waste karungi :P

1
Philip Calvert ·

@ sankara how can a no. have more than one decimal point
[3]
you wrote 0.333333333333333333333333...........

i must correct you the ans should be 1/3 or 0.3 cm[4]

1
skygirl ·

is this your dbt.. ??

(then i will type the answer... or else [3])

3
msp ·

parra thori hindiellam pesudhu

thoraina aangala kurikkum
thorina pengala kurikkum

3
msp ·

ok sky where r u

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