Got Homework?
Connect with other students for help. It's a free community.
Here's the question you clicked on:
 0 viewing
A convex mirror of focal length f produces an image half of the size of the object. What is the distance of the object from the mirror?
 2 years ago
 2 years ago
A convex mirror of focal length f produces an image half of the size of the object. What is the distance of the object from the mirror?
 2 years ago
 2 years ago

This Question is Closed

AadarshBest ResponseYou've already chosen the best response.2
Object distance = u image distance = v Height of image / height of object = v/u
 2 years ago

KingBest ResponseYou've already chosen the best response.1
yeah as in can u post the sol.?
 2 years ago

AadarshBest ResponseYou've already chosen the best response.2
see now, h / 2h = v/u u = 2v
 2 years ago

AadarshBest ResponseYou've already chosen the best response.2
\[1divv 1divu =1divf\]
 2 years ago

AadarshBest ResponseYou've already chosen the best response.2
Becoz, in calculation, u should take object distance as negative. So, u becomes u. And hence 2v
 2 years ago

KingBest ResponseYou've already chosen the best response.1
ok so u get 3/2v=1/f 2v=3f
 2 years ago

AadarshBest ResponseYou've already chosen the best response.2
Then, equate v = 3f / 2
 2 years ago

AadarshBest ResponseYou've already chosen the best response.2
Substitute it in the formula: 1/v  1/u = 1/f
 2 years ago

AadarshBest ResponseYou've already chosen the best response.2
Yeah, soorry. Then don't use  2v in the formula. use 2v. U may get it.
 2 years ago

AadarshBest ResponseYou've already chosen the best response.2
Oooooooooooo. Gtg. Byeeeeeeeeeee. ur result?
 2 years ago

AadarshBest ResponseYou've already chosen the best response.2
Super. Congrtas. Ready for US trip?????????????
 2 years ago

AadarshBest ResponseYou've already chosen the best response.2
PLz reply to my email. plzzzzzzzzzzz
 2 years ago

saliniBest ResponseYou've already chosen the best response.0
@aadarsh, u have successfully completed 10th so tell me, can a convex mirror produce an image which is half of the object's height?
 2 years ago

AadarshBest ResponseYou've already chosen the best response.2
Arre Shalini didi and king, I think I was in a dream while solving this question. I thought it to be a convex lens instead of a mirror. Here is the detailed answer. Sorry for mistake.
 2 years ago

AadarshBest ResponseYou've already chosen the best response.2
Mirror Formula: 1/v + 1/u = 1/f And, h'/h = v/u (magnification formula) So, given, h'/h = v/u = 1/2............(i) So, u = 2v.......(ii) Now, 1/v + 1/(2v) = 1/f Or, 1/2v = 1/f Or, f = 2v Or, f = 2v So, f = u [From (ii)]
 2 years ago

saliniBest ResponseYou've already chosen the best response.0
u havent answered my question yet aadarsh can a convex mirror , produce an image which is half of the object's height? i wud like to add one thing here be very clear to visualise the ray diagrams for any lens or mirror b4 solving sum
 2 years ago

AadarshBest ResponseYou've already chosen the best response.2
@salini akka, i think a convex mirror can produce an image half size of that of object, in some cases, when object is between infinity and pole of mirror.
 2 years ago

saliniBest ResponseYou've already chosen the best response.0
oh my! check ur 10th book aadarsh
 2 years ago

AadarshBest ResponseYou've already chosen the best response.2
didi, its given that it will form a diminished, virtual and erect image. That's all na?????????
 2 years ago

saliniBest ResponseYou've already chosen the best response.0
ya so will it produce a halfsized image?
 2 years ago

AadarshBest ResponseYou've already chosen the best response.2
not really. BUt can it not produce in some cases???????????????
 2 years ago

saliniBest ResponseYou've already chosen the best response.0
i am curious when? when our bible says no it is a no u know wat i mean by bible dont u?
 2 years ago

AadarshBest ResponseYou've already chosen the best response.2
Yeah, "Bible" means Book. (NCERT) Can u plz say why it cannot?
 2 years ago

saliniBest ResponseYou've already chosen the best response.0
its the property of convex mirror to always form virtual diminished(not even the quarter of size of object)_ how? it was found by great ppl all we do is read them right?
 2 years ago

saliniBest ResponseYou've already chosen the best response.0
whenever u see a question related to lens or mirrors flash the image formation diagrams b4 the formula @king ur question is wrong
 2 years ago

AadarshBest ResponseYou've already chosen the best response.2
How didi? question is wrong? See my process . Everything is correct. But u r true taht a convex mirror cannot form an half image image.
 2 years ago

saliniBest ResponseYou've already chosen the best response.0
:) see ur text book and read my last comment it will help u
 2 years ago

AadarshBest ResponseYou've already chosen the best response.2
Yeah, u r rite didi. I was mad at the first itself.
 2 years ago
See more questions >>>
Your question is ready. Sign up for free to start getting answers.
spraguer
(Moderator)
5
→ View Detailed Profile
is replying to Can someone tell me what button the professor is hitting...
23
 Teamwork 19 Teammate
 Problem Solving 19 Hero
 Engagement 19 Mad Hatter
 You have blocked this person.
 ✔ You're a fan Checking fan status...
Thanks for being so helpful in mathematics. If you are getting quality help, make sure you spread the word about OpenStudy.