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

Assertion : Distance between position of bright and dark fringe remain same in YDSE.

Reason : Fringe width, $$\beta=\frac{\lambda D}{d}$$

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 2019
MCQ (Single Correct Answer)
+1
-0.33

Assertion : In both radioactivity and photoelectric effect electrons may be ejected.

Reason : In photoelectric effect and radioactivity emission occurs only of unstable elements.

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.
3
AIIMS 2019
MCQ (Single Correct Answer)
+1
-0.33

Assertion : Electron moving perpendicular to B will perform circular motion.

Reason : Force by magnetic field is perpendicular to velocity.

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.
4
AIIMS 2019
MCQ (Single Correct Answer)
+1
-0.33

Assertion : In ionospheric reflection, phase change does not occur with the radio wave.

Reason : The ionosphere reflection is similar to the total internal reflection in miraj.

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.
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