1
AIIMS 2019
MCQ (Single Correct Answer)
+1
-0.33

Assertion : Incoming light reflected by earth is partially polarised.

Reason : Atmospheric particle polarise the light.

A
If both assertion and reason are true and reason is the correct explanation of assertion.
B
If both assertion and reason are true, but reason is not the correct explanation of assertion.
C
If assertion is true, but reason is false.
D
If both assertion and reason are false.
2
AIIMS 2018
MCQ (Single Correct Answer)
+1
-0.33

An unpolarised beam of intensity $$2 a^2$$ passes through a thin polaroid. Assuming zero absorption in the polaroid, the intensity of emergent plane polarised light is

A
$$2 a^2$$
B
$$a^2$$
C
$$\sqrt{2} a^2$$
D
$$\frac{a^2}{2}$$
3
AIIMS 2018
MCQ (Single Correct Answer)
+1
-0.33

Red light of wavelength 5400 $$\mathop A\limits^o $$ from a distant source falls on a slit 0.80 mm wide. Calculate the distance between first two dark bands on each side of central bright band in the diffraction pattern observed on a screen place 1.4 m from the slit.

A
1.89 mm
B
4 mm
C
1 mm
D
3 mm
4
AIIMS 2018
MCQ (Single Correct Answer)
+1
-0.33

Assertion : If a glass slab is placed in front of one of the slits, then fringe with will decrease.

Reason : Glass slab will produce an additional path difference.

A
Both Assertion and Reason are correct, Reason is the correct explanation of Assertion
B
Both Assertion and Reason are correct but Reason is not the correct explanation of Assertion
C
Assertion is correct and Reason is incorrect
D
Assertion is incorrect and Reason is correct
AIIMS Subjects
EXAM MAP
Medical
NEETAIIMS
Graduate Aptitude Test in Engineering
GATE CSEGATE ECEGATE EEGATE MEGATE CEGATE PIGATE IN
Civil Services
UPSC Civil Service
Defence
NDA
Staff Selection Commission
SSC CGL Tier I
CBSE
Class 12