Electromagnetism
Current Electricity
MCQ (Single Correct Answer)
Moving Charges and Magnetism
MCQ (Single Correct Answer)
Magnetism and Matter
MCQ (Single Correct Answer)
Electromagnetic Induction
MCQ (Single Correct Answer)
Alternating Current
MCQ (Single Correct Answer)
Electromagnetic Waves
MCQ (Single Correct Answer)
Modern Physics
Dual Nature of Radiation
MCQ (Single Correct Answer)
Semiconductor Devices and Logic Gates
MCQ (Single Correct Answer)
1
BITSAT 2021
MCQ (Single Correct Answer)
+3
-1

If the earth stops rotating about its axis, then what will be the change in the value of g at a place in the equatorial plane? (Radius of earth = 6400 km)

A
3.7 cm/s2
B
9.8 m/s2
C
0
D
3.4 cm/s2
2
BITSAT 2020
MCQ (Single Correct Answer)
+3
-1

Two spheres of the same material and same radii r are touching each other. The gravitational force between the spheres is proportional to

A
$${1 \over {{r^2}}}$$
B
r2
C
$${1 \over {{r^4}}}$$
D
r4
3
BITSAT 2020
MCQ (Single Correct Answer)
+3
-1

A satellite is moving around the earth with speed v in a circular orbit of radius r. If the orbit radius is decreased by 2%, its speed will increase by

A
1%
B
2%
C
1.5%
D
1.414%
BITSAT Subjects
English Proficiency