1
AIPMT 2000
MCQ (Single Correct Answer)
+4
-1
For a plano convex lens ($$\mu $$ = 1.5) has radius of curvature 10 cm. It is silvered on its plane surface. Find focal length after silvering
A
10 cm
B
20 cm
C
15 cm
D
25 cm
2
AIPMT 2000
MCQ (Single Correct Answer)
+4
-1
Electric field at centre O of semicircle of radius $$a$$ having linear charge density $$\lambda $$ given as

AIPMT 2000 Physics - Electrostatics Question 27 English
A
$${{2\lambda } \over {{\varepsilon _0}a}}$$
B
$${{\lambda \pi } \over {{\varepsilon _0}a}}$$
C
$${\lambda \over {2\pi {\varepsilon _0}a}}$$
D
$${\lambda \over {\pi {\varepsilon _0}a}}$$
3
AIPMT 2000
MCQ (Single Correct Answer)
+4
-1
By photoelectric effect, Einstein proved
A
E = h$$\upsilon $$
B
K.E. = $${1 \over 2}$$ mv2
C
E = mc2
D
E = $${{ - Rh{c^2}} \over {{n^2}}}$$
4
AIPMT 2000
MCQ (Single Correct Answer)
+4
-1
Who evaluated the mass of electron infirectly with help of charge
A
Thomson
B
Millikan
C
Rutherford
D
Newton
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