Advertisements
Advertisements
प्रश्न
A pendulum completes 2 oscillations in 5 s. What is its time period? If g = 9.8 m s-2, find its length.
Advertisements
उत्तर
Time period = Total time/total no. of oscillations
= (5/2) s
= 2.5 s
Let 'l' be the length. Then,
`T = 2pisqrt(l/"g")`
or , `2.5 = 2(3.14)sqrt(l/9.8)`
or , 0.398 = `sqrt(l/9.8)`
or , `l = (0.398)^2(9.8)`
or , l = 1.55 m
APPEARS IN
संबंधित प्रश्न
What is meant by zero error of vernier callipers ? How is it determined? Draw neat diagrams to explain it. How is it taken in account to get the correct measurement?
Fig., below shows the reading obtained while measuring the diameter of a wire with a screw gauge. The screw advances by 1 division on the main scale when circular head is rotated once.
Find:
(i) Pitch of the screw gauge,
(ii) Least count of the screw gauge and
(iii) The diameter of the wire.
How can the least count of a screw gauge be decreased?
The final result of the calculation in an experiment is 125,347,200. Express the number in term of significant place when accuracy is between 1 and 1000
State the formula for determining a pitch
State the correction if the negative error is 7 divisions when the least count is 0.01 cm.
How do you account for positive zero error for calculating the correct diameter of wires?
How do you account for negative zero error, for calculating the correct diameter of wires?
The Wavelength of a particular colour is 5400Å. Express it in nanometer and metre.
The main scale reading while measuring the thickness of a rubber ball using Vernier caliper is 7 cm and the Vernier scale coincidence is 6. Find the radius of the ball.
