Question

Match List I with List II and select the correct answer using the codes given below the lists :

List I

(Position of the object)

List II

(Magnification)

(I) An object is placed at focus before a convex mirror

(A) Magnification is -

(II) An object is placed at centre of curvature before a concave mirror

(B) Magnification is 0.5

(III) An object is placed at focus before a concave mirror

(C) Magnification is +1

(IV) An object is placed at centre of curvature before a convex mirror

(D) Magnification is  -1

 

(E) Magnification is 0.33

Codes :

(a) I-B, II-D, III-A, IV-E

(b) I-A, II-D, III-C, IV-B

(c) I-C, II-B, III-A, IV-E

(d) I-B, II-E, III-D, IV-C

Answer

(a) I-B, II-D, III-A, IV-E

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

The work function of a metal is $ hc/\lambda_{0} $. Light of wavelength $ \lambda $ is incident on the surface of the metal. For emission of electrons from the metal the condition is :

Assertion :   The back emf in a dc motor is maximum when the motor has just been switched on.

Reason     : When motor is switched on it has maximum speed.

(a) If both assertion and reason are true and the reason is the correct explanation of the assertion.

(b) If both assertion and reason are true but reason is not the correct explanation of the assertion.

(c) If assertion is true but reason is false.

(d) If the assertion and reason both are false.

The resistance of a coil is 4.2 Ω at 100 oC and the temperature coefficient of resistance of its material is 0.004/o C.  Its resistance at 0o C is

(a) 6.5 Ω

(b) 5 Ω

(c) 3 Ω

(d) 4 Ω

Out of the following, the one whose frequency is minimum is:

The ratio of minimum to maximum wavelength in Balmer series is

(a) 5 : 9

(b) 5 : 36

(c) 1 : 4

(d) 3 : 4

Gauss’s law should be invalid if

(a) There were magnetic monopoles

(b) The inverse square law were not exactly true

(c) The velocity of light were not a universal constant

(d) None of these

A capacitor is charged to 200 volt it has 0.1 coulomb charge. When it is discharged, energy will be

(a) 1 J

(b) 4 J

(c) 10 J

(d) 20 J

Following is the relation between current and charge   then value of VL will be

(a)  

(b)  

(c)   

(d)  

The shortest wavelength in the Lyman series of hydrogen spectrum is 912 Å corresponding to a photon energy of 13.6 eV. The shortest wavelength in the Balmer series is about

(a) 3648 Å

(b) 8208 Å

(c) 1228 Å

(d) 6566 Å

When two converging lens of same focal length $f$ are placed in contact then the focal length of the combination is :