Hey there! We receieved your request
Stay Tuned as we are going to contact you within 1 Hour
One of our academic counsellors will contact you within 1 working day.
Click to Chat
1800-5470-145
+91 7353221155
Use Coupon: CART20 and get 20% off on all online Study Material
Complete Your Registration (Step 2 of 2 )
Sit and relax as our customer representative will contact you within 1 business day
OTP to be sent to Change
plane mirror can form real image...true/false
if ans is true i need explanation.
Hi Suchita,
A plane mirror, if the object is not at infinity, can never produce a real image.
But yes, a plane mirror can produce real image under certain special cirumstances.
Just as a pinhole camera produces a real image. Take a small piece of a flat mirror (you can tape over a mirror leaving just a small clear area) and use it to reflect direct sunlight to a shaded screen. There will be a slightly blurred real image of the sun. You can draw a ray diagram to show that this works. Rays from the sun converge on the mirror piece and are reflected to the screen at angles according to their angles of incidence. Whether you can actually see this amount of light is another question. The smaller the mirror is relative to the reflection distance, the sharper but dimmer the image is. And since the projection screen must not shade the mirror, the image will be offset from the incident rays and the image may be distorted as a result. It can be argued that both the pinhole camera and this setup, having an undefined focal point, only make approximations to an image. But there is a visible, recognizable projected image.
As an image is formed on a screen (we conclusively say that it is a real image, as only real images can be caught on a screen)
You can heve a look at some of the pictures on this site (where the experiment is set-up):
http://www2.eng.cam.ac.uk/~hemh/transit.htm.
Hope that helps.
All the best.
Regards,
Ashwin (IIT Madras).
(1/u)+(1/v)=(1/f)
for plane mirror,f is infinite
therefore v=-u, and in addition u is always positive
therefore v is negative implying that image is always virtual
Get your questions answered by the expert for free
You will get reply from our expert in sometime.
We will notify you when Our expert answers your question. To View your Question
Win Gift vouchers upto Rs 500/-
Register Yourself for a FREE Demo Class by Top IITians & Medical Experts Today !