1
JEE Main 2023 (Online) 29th January Morning Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

Ratio of thermal energy released in two resistors R and 3R connected in parallel in an electric circuit is :

A
1 : 1
B
1 : 27
C
1 : 3
D
3 : 1
2
JEE Main 2023 (Online) 29th January Morning Shift
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
Change Language

If the height of transmitting and receiving antennas are 80 m each, the maximum line of sight distance will be:

Given : Earth's radius $$=6.4\times10^6$$ m

A
28 km
B
64 km
C
32 km
D
36 km
3
JEE Main 2023 (Online) 29th January Morning Shift
Numerical
+4
-1
Change Language

Two simple harmonic waves having equal amplitudes of 8 cm and equal frequency of 10 Hz are moving along the same direction. The resultant amplitude is also 8 cm. The phase difference between the individual waves is _________ degree.

Your input ____
4
JEE Main 2023 (Online) 29th January Morning Shift
Numerical
+4
-1
Change Language

A solid sphere of mass 2 kg is making pure rolling on a horizontal surface with kinetic energy 2240 J. The velocity of centre of mass of the sphere will be _______ ms$$^{-1}$$.

Your input ____
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