Assertion (A): The relation among u , v and f for the spherical m… - Vidyadip

MCQ

Assertion $(A):$ The relation among $u , v$ and $f$ for the spherical mirror is valid only for mirrors whose sizes are very small compared to their radii of curvature.

Reason $(R):$ The laws of reflection are strictly valid for plane surfaces but not for large spherical surfaces.

✓
If Assertion is true but Reason is false.
B
If both Assertion and Reason are true but Reason is not the correct explanation of Assertion
C
If both Assertion and Reason are true and Reason is correct explanation of Assertion.
D
If both Assertion and Reason are false.

✓

Answer

Correct option: A.

If Assertion is true but Reason is false.

a
(a)

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

More "M.C.Q (1 Marks)" from 9. Ray optics abd optical instruments→9. Ray optics abd optical instruments — all question types→Physics STD 12 Science question papers→CBSE Board STD 12 Science question papers→CBSE Board question paper generator→

Similar questions

A loop carrying current $I$ lies in the $x$-y plane as shown in the figure. the unit vector $\hat{ k }$ is coming out of the plane of the paper. the magnetic moment of the current loop is :

The refractive index of water is $1.33.$ The direction in which a man under water should look to see the setting sun is

The true statement for thermo e.m.f. of a thermocouple

A charge $3$ coulomb experiences a force $3000$ $N$ when placed in a uniform electric field. The potential difference between two points separated by a distance of $1$ $cm$ along the field lines is.....$V$

In a series circuit $R = 300\, \Omega$, $L = 0.9$ $ H, C = 2.0\, \mu$$F$ and $\omega$= $1000 \,rad/sec$. The impedance of the circuit is........$\Omega$

As shown in the figure, a potentiometer wire of resistance $20\,\Omega$ and length $300\,cm$ is connected with resistance box (R.B.) and a standard cell of emf $4\,V$. For a resistance ' $R$ ' of resistance box introduced into the circuit, the null point for a cell of $20\,mV$ is found to be $60\,cm$. The value of ' $R$ ' is $.....\Omega$

A uniform magnetic field, parallel to the plane of the paper existed in space initially directed from left to right. When a bar of soft iron is placed in the field parallel to it, the lines of force passing through it will be represented by

As the switch S is closed in the circuit shown in figure, current passed through it is

The power dissipated in the circuit shown in the figure is $30\, Watts$. The value of $R$ is ............. $\Omega$

During a negative beta decay: