Find the value of acceleration due to gravity on a system which has 100 cm, and 1 min as fundamental quantity.
Answers
Answer:
What is meant by measurement?
Solution 1
Measurement is the process of comparing a given physical quantity with a known standard quantity of the same nature.
Question 2
The fundamental unit present in the list mentioned below is
1. Newton
2. Pascal
3. Hertz
4. Second
Solution 2
Second
Question 3
The wavelength of light of a particular colour is 5800 Å. (a) Express it in (i) nanometre and (ii) metre. (b) What is its order of magnitude in metre?
Solution 3
Wavelength of light of particular colour = 5800
(a)
(i) 1 = 10-1 nm
5800 = 5800 × 10-1 nm
= 580 nm
(ii) 1 = 10-10 m
5800 = 5800 × 10-10 m
= 5.8 × 10-7 m
(b) The order of its magnitude in metre is 10-6 m because the numerical value of 5.8 is more than 3.2.
Question 4
What do you understand by the term unit?
Solution 4
Unit is a quantity of constant magnitude which is used to measure the magnitudes of other quantities of the same manner.
Question 5
Which of the following unit is not a fundamental unit:
1. Metre
2. Litre
3. Second
4. Kilogramme
Solution 5
Litre
Question 6
The size of bacteria is 1 µ. Find the number of bacteria present in 1 m length.
Solution 6
Size of a bacteria = 1 µ
Since 1 µ = 10-6 m
Number of the particle = Total length/size of
one bacteria
= 1 m/10-6 m
= 106
Explanation:
l hope it will be helpful
Explanation:
100 meter per second square..