Number of revolutions made by the wheel in 1 minute = 360
∴Number of revolutions made by the wheel in 1 second = 360/60 = 6
In one complete revolution, the wheel...
Let the speed = x km/h. Distance = 360km
then time taken = distance/speed
t1=360/x
if speed is increased by 5 km/h
speed will be (x+5)km/h and distance is the same
t2= 360/(x+5)
time with original...
(a) Frequency of vibration in hertz
Given,
Number of vibration in one minute = 6000
Number of vibrations in one sec = 6000/ 60 =100Hz
Therefore, Frequency, f = 100 Hz
(b) Wavelength of the...
The correct answer is (4)
In human, 12 pairs of ribs are present out of which 7 pairs of ribs (1st to 7th pair) are dorsally attached to vertebral column and...