Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
Q. A 4.5cm needle is placed 12cm away from a convex mirror of focal length 15cm. Give the location of the image and the magnification. Describe what happens as the needle is moved farther from the mirror.
Answer
The Height of the needle h1 = 4.5cm
Object distance u=-12cm
Focal length of the convex mirror f=15cm
Image distance = v
The value of v is able to be obtained using the mirror formula:
Thus the image of the needle is 6.7cm away from the mirror. As well it is on the other side of the mirror.
The image size is given by the magnification formula:
Thus magnification of the image
The height of the image is 2.5cm.The positive sign signifies that the image is virtual, erect, and diminished.
If the needle is moved be yond from the mirror, the image will as well move away from the mirror and the size of the image will decrease gradually.
Beauty criterion (Dirac) The idea that the more aesthetically pleasant a theory is, the better it is. Of course this criterion does not stand up to the real test whether or no
Eddy currents can be briefly explained as currents produced due to induced emf in the form of eddies or ripples. Hysteresis laws mainly consists of 2 topics retentivity and coerci
What is a fiber optic system? This term comprises all the essential elements to install a working unit.
The fringe width in a Young's double slit arrangement is 0.008cm. What could be the fringe width if the slit separation is halved and the screen slit distance is doubled?
A block of mass m 1 sits on a rough table. The coe?cient of static and kinetic friction between the mass and the table are s and k, respectively. Another mass m 2 is suspended
which one of the following engine has thr highest effeciency carnot engine or rankine engine or otto engine?
Dual Nature of Light: As light is accepted as a form of waves as well as packets of photon. This nature of light is known as dual nature of light.
how to get the formula ?.
I am stuck on how to do this assignment
A circuit having of a 10μF capacitor connected in series with a 25 k resistor with a switchable 100V d.c. supply. When the supply is connected, calculate (a) The time constant,
Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!
whatsapp: +91-977-207-8620
Phone: +91-977-207-8620
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd