The number of oscillations per second is called ………… .

True or False The number of oscillations per second of a vibrating object is called its time period.

In the following statements ,tick 'T' against those which are true and 'F' against those which are false. The number opf oscillations per second of a viberating object is called its time period. (T/F)

What are the different methods of increasing the number of molecular collisions per second in a gas?

Fill ups The number of organisms found per unit area is called as………….. .

The number of atoms per unit cell in BCC is

Find the number of photons emitted per second by a 25 W source of monochromatic light of wavelength 6000 oversetcircA .

A tuning fork A,marked 512 Hz, produces 5 beats per second,when sounded with another unmarked tuning fork B.If B is loaded with wax the number of beats is again 5 per second.What is the frequency of the tuning fork B when not loaded?

Estimating the following two numbers should be interesting. The first number will tell you why radio engineering do not need to worry much about photons. The second number tells you why our eye can never count photons, even in barely detetable light. The number of photons emitted per second by a MW transmitter of 10 kW power emitting radio waves of wavelength 500 m.