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.Management Sciences
Category: Physics Mcqs
The equation θ = 1.22 λ/D was devised by_______________?
0
A. Newton
B. Einstein
C. Raleigh
D. Planks
An electron enters a region where the electric field E is perpendicular to the magnetic field B. It will suffer no deflection if_________________?
A. E = BeV
B. B = eE/V
C. E = BV
D. E = BeV/2
Reflecting mirrors in laser is used to______________?
A. Further stimulation
B. Lasing more
C. For producing more energetic lasers
D. All
Ultrasonic have__________________?
A. frequency in the audible range
B. frequency is greater than 20 kHz
C. frequency lower than 20 Hz
D. all of above
If the length of the second pendulum becomes four times, then its time period will become________________?
A. 4 times
B. 6 times
C. 8 times
D. 2 times
At Murree Hills (Assume the value of g changes). If we use a simple pendulum as time standard then one-second duration will_____________?
A. Increase
B. Decrease
C. Remains the same
D. Is zero
Velocity of sound in vacuum is ____________________?
A. 332 ms-1
B. 320 ms-1
C. Zero
D. 224 ms-1
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