1
MHT CET 2019 3rd May Morning Shift
MCQ (Single Correct Answer)
+1
-0

In a hydrogen atom, an electron of charge $e$ revolves in a orbit of radius $r$ with speed $v$. Then, magnetic moment associated with electron is

A
$\frac{e v r}{2}$
B
2 evr
C
evr
D
$\frac{e v r}{3}$
2
MHT CET 2019 3rd May Morning Shift
MCQ (Single Correct Answer)
+1
-0

$V-I$ characterstics of LED is shown correctly by graph

A
MHT CET 2019 3rd May Morning Shift Physics - Semiconductor Devices and Logic Gates Question 1 English Option 1
B
MHT CET 2019 3rd May Morning Shift Physics - Semiconductor Devices and Logic Gates Question 1 English Option 2
C
MHT CET 2019 3rd May Morning Shift Physics - Semiconductor Devices and Logic Gates Question 1 English Option 3
D
MHT CET 2019 3rd May Morning Shift Physics - Semiconductor Devices and Logic Gates Question 1 English Option 4
3
MHT CET 2019 3rd May Morning Shift
MCQ (Single Correct Answer)
+1
-0

The stopping potential of the photoelectrons, from a photo cell is

A
directly proportional to intensity of incident light
B
directly proportional to frequency of incident light
C
inversely proportional to frequency of incident light
D
Inversely proportional to intensity of incident light
4
MHT CET 2019 3rd May Morning Shift
MCQ (Single Correct Answer)
+1
-0

The refractive index of the material of crystal is 1.68 and that of castor oil is 1.2. When a ray of light passes from oil to glass, its velocity will change by a factor

A
$\frac{2}{3}$
B
$\frac{3}{4}$
C
$\frac{5}{6}$
D
$\frac{5}{7}$
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