An object is placed in front of a spherical mirror whose 2 , time… - Vidyadip

MCQ

An object is placed in front of a spherical mirror whose $2\, times$ magnified image is formed on screen. Then choose $CORRECT$ option

A
Mirror is concave $m = +2$
✓
Mirror is concave $m = -2$
C
Mirror is concavex $m = +2$
D
Mirror is concavex $m = -2$

✓

Answer

Correct option: B.

Mirror is concave $m = -2$

b
Image is formed two times then magnification $= -2$ mirror is concave.

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

Explore more

JEE STD 11 Science question papers→Gujarat Board STD 11 Science question papers→Gujarat Board question paper generator→

Similar questions

Huygen's theory of secondary waves can be used of find

In a Young's double slit experiment, the separation between the slits is $0.15\; \mathrm{mm}$. In the experiment, a source of light of wavelength $589 \;\mathrm{nm}$ is used and the interference pattern is observed on a screen kept $1.5\; \mathrm{m}$ away. The separation between the successive bright fringes on the screen is......$mm$

In the figure shown the power generated in $y$ is maximum when $y = 5\,\Omega $. Then $R$ is

In the following figure, the object of mass $m$ is held at rest by a horizontal force as shown. The force exerted by the string on the block is

Maximum and minimum magnitudes of the resultant of two vectors of magnitudes $P$ and $Q$ are in the ratio $3:1.$ Which of the following relations is true

In the Young's double slit experiment, the intensities at two points $P_1$ and $P_2$ on the screen are respectively $I_1$ and $I_2$ . If $P_1$ is located at the centre of a bright fringe and $P_2$ is located at a distance equal to a quarter of fringe width from $P_1$ then $\frac {I_1}{I_2}$ is

A rocket has an initial mass of $20 \times {10^3}\,kg$. If it is to blast off with an initial acceleration of $4\,m{s^{ - 2}}$, the initial thrust needed is $(g = 10\,m{s^{ - 2}})$

Radioactive nuclei $P$ and $Q$ disintegrate into $R$ with half lives 1 month and 2 months respectively. At time $t=$ 0 , number of nuclei of each $P$ and $Q$ is $x$. Time at which rate of disintegration of $P$ and $Q$ are equal, number of nuclei of $R$ is ........ $x$

The net magnetic flux through any closed surface is