1
NEET 2019
MCQ (Single Correct Answer)
+4
-1
Change Language
A body weight 200 N on the surface of earth. How much will it weight half way down to the centre of the earth?
A
200 N
B
250 N
C
100 N
D
150 N
2
NEET 2019
MCQ (Single Correct Answer)
+4
-1
Change Language
Pick the wrong answer in the context with rainbow.
A
An observer can see a rainbow when his front is towards the sun.
B
Rainbow is a combined effect of dispersion refraction and reflection of sunlight.
C
When the light rays undergo two internal reflections in a water drop, a secondary rainbow is formed.
D
The order of colours is reversed in the secondary rainbow.
3
NEET 2019
MCQ (Single Correct Answer)
+4
-1
Change Language
A disc of radius 2 m and mass 100 kg rolls on a horizontal floor. Its centre of mass has speed of 20 cm/s. How much work is needed to stop it?
A
1 J
B
2 J
C
3 J
D
30 kJ
4
NEET 2019
MCQ (Single Correct Answer)
+4
-1
Change Language
Two particles A and B are moving in uniform circular motion in concentric circles of radii rA and rB with speed vA and vB respecitively. Their time period of rotation is the same. The ratio of angular speed of A to that of B will be :
A
vA : vB
B
1 : 1
C
rB : rA
D
rA : rB
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