Question

Find the value of acceleration due to gravity on a system which has 100 cm, and 1 min as fundamental quantity.​

Answer 1

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

Answer 2

Explanation:

100 meter per second square..