MCQ
An object 5 cm tall is placed 1m from a concave spherical mirror which has a radius of curvature of 20 cm The size of the image is
  • A
    0.11 cm
  • B
    0.50 cm
  • 0.55 cm
  • D
    0.60 cm

Answer

Correct option: C.
0.55 cm
 0.55 cm

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Similar questions

5 amperes of current is passed through a metallic conductor. The charge flowing in one minute in coulombs will be
In the circuit shown in the figure, if the potential at point $A$ is taken to be zero, the potential at point $B$ is ................ $V$
A solar cell is to be fabricated for efficient conversion of solar radiation to emf using material $A$. The solar cell is to be mechanically protected with the help of a coating using material $B$. If the band gap energy of materials $A$ and $B$ are $E_{A}$ and $E_{B}$ respectively, then which of the following choices is optimum for better performance of the solar cell?
To minimise the power loss in the transmission cables connecting the power stations to homes and factories, the transmission cables carry current:
A short bar magnet with its north pole facing north forms a neutral point at $P$ in the horizontal plane. If the magnet is rotated by $90^o$ in the horizontal plane, the net magnetic induction at $P$ is (Horizontal component of earth’s magnetic field = ${B_H}$)
A $100\,watt$ light source is emitting radiations of wavelength $5000\,\mathop A\limits^o $. The rate of emission of photons is of the order of
If we need a magnification of $375$ from a compound microscope of tube length $150\; \mathrm{mm}$ and an objective of focal length $5\; \mathrm{mm}$, the focal length of the eye-piece, should be close to.....$mm$
The focal lengths of the objective and eye lens of a microscope are 4 cm and 8 cm respectively, and the distance of the object from the eye lens is 4.5 cm ., then the magnifying power will be :
What will be the nature of charge on the metal paper clip of electroscope when a negatively charged body is brought in contact with it?
The input resistance of a common emitter transistor amplifier, if the output resistance is $500\,k\Omega $, the current gain $\alpha = 0.98$ and power gain is $6.0625 \times 10^6$, is.......$\Omega $