1
WB JEE 2019
MCQ (Single Correct Answer)
+1
-0.25
Change Language
To which of the following the angular velocity of the electron in the n-th Bohr orbit is proportional?
A
$${n^2}$$
B
$${1 \over {{n^2}}}$$
C
$${1 \over {{n^{3/2}}}}$$
D
$${1 \over {{n^3}}}$$
2
WB JEE 2019
MCQ (Single Correct Answer)
+1
-0.25
Change Language
In the circuit shown, what will be the current through the 6V zener?

WB JEE 2019 Physics - Electronic Devices Question 14 English
A
6 mA, from A to B
B
2 mA, from A to B
C
2 mA, from B to A
D
Zero
3
WB JEE 2019
MCQ (Single Correct Answer)
+1
-0.25
Change Language
Each of the two inputs A and B can assume values either 0 or 1. Then which of the following will be equal to $$\overline {A\,} $$ . $$\overline {B\,} $$?
A
A + B
B
$$\overline {A + B} $$
C
$$\overline {A . B} $$
D
$$\overline {A\,} $$ + $$\overline {B\,} $$
4
WB JEE 2019
MCQ (Single Correct Answer)
+1
-0.25
Change Language
The correct dimensional formula for impulse is given by
A
ML2t$$-$$2
B
MLT$$-$$1
C
ML2t$$-$$1
D
MLT$$-$$2
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