1
AIPMT 2015
MCQ (Single Correct Answer)
+4
-1
Change Language
Light of wavelength 500 nm is incifent on a metal with work function 2.28 eV. The de Broglie wavelength of the emitted electron is
A
$$ \ge $$ 2.8 $$ \times $$ 10$$-$$9 m
B
$$ \le $$ 2.8 $$ \times $$ 10$$-$$12 m
C
< 2.8 $$ \times $$ 10$$-$$10 m
D
< 2.8 $$ \times $$ 10$$-$$9 m
2
AIPMT 2015 Cancelled Paper
MCQ (Single Correct Answer)
+4
-1
Change Language
Which of the following figures represent the variation of particle momentum and the associated de-Broglie wavelength?
A
AIPMT 2015 Cancelled Paper Physics - Dual Nature of Radiation and Matter Question 73 English Option 1
B
AIPMT 2015 Cancelled Paper Physics - Dual Nature of Radiation and Matter Question 73 English Option 2
C
AIPMT 2015 Cancelled Paper Physics - Dual Nature of Radiation and Matter Question 73 English Option 3
D
AIPMT 2015 Cancelled Paper Physics - Dual Nature of Radiation and Matter Question 73 English Option 4
3
AIPMT 2015 Cancelled Paper
MCQ (Single Correct Answer)
+4
-1
Change Language
A certain metallic surface is illuminated with monochromatic light of wavelength, $$\lambda .$$ The stopping potential for photo-electric current for this light is 3V0. If the same surface is illuminated with light of wavelength 2 $$\lambda $$, the stopping potential is V0. The threshold wavelength for this surface for photo-electric effect is
A
$${\lambda \over 4}$$
B
$${\lambda \over 6}$$
C
6$$\lambda $$
D
4$$\lambda $$
4
AIPMT 2014
MCQ (Single Correct Answer)
+4
-1
Change Language
If the kinetic energy of the particle is increased to 16 times its previous value, the percentage change in the de Broglie wavelength of the particle is
A
25
B
75
C
60
D
50
NEET Subjects
EXAM MAP