1
AIPMT 2014
MCQ (Single Correct Answer)
+4
-1
When the energy of the incident radiation is increased nby 20%, the kinetic energy of the photoelectrons emitted from a metal surface increased from 0.5 eV to 0.8 eV. The work function of the metal is
A
0.65 eV
B
1.0 eV
C
1.3 eV
D
1.5 eV
2
AIPMT 2014
MCQ (Single Correct Answer)
+4
-1
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
3
AIPMT 2014
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
A radioactive X with a half life 1.4 $$ \times $$ 109 years decays to Y which is stable. A sample of the rock from a cave was found to contain X and Y in the ratio 1 : 7. The age of the rock is
A
1.96 $$ \times $$ 109 years
B
3.92 $$ \times $$ 109 years
C
4.20 $$ \times $$ 109 years
D
8.40 $$ \times $$ 109 years
4
AIPMT 2014
MCQ (Single Correct Answer)
+4
-1
Hydrogen atom in ground state is excited by a monochromatic radiation of $$\lambda $$ = 975 $$\mathop A\limits^ \circ $$. Number of spectral lines in the resulting spectrum emitted will be
A
3
B
2
C
6
D
0 10
EXAM MAP
Medical
NEET
Graduate Aptitude Test in Engineering
GATE CSEGATE ECEGATE EEGATE MEGATE CEGATE PIGATE IN
CBSE
Class 12