Physics Part-I - NCERT Solutions - GeniusJnr

Write the smallest 5-digit number and express it in the form of its prime factors.

How many times a wheel of radius 28 cm must rotate to go 352 m?

(Take π )

Find six rational numbers between 3 and 4.

The minute hand of a circular clock is 15 cm long. How far does the tip of the minute hand move in 1 hour. (Take π = 3.14)

If force, acceleration and time are taken as fundamental quantities, then the dimension of mass will be

Position of a body is represented by r = A sin Bx + C sin Dt where x is in metres and t is in seconds. The dimension of is

Find all prime factors of 1729 and arrange them in ascending order. Now state the relation, if any; between two consecutive prime factors.

Use the sign of >, < or = in the box to make the statements true.

State whether the following statements are true or false. Give reasons for your answers.

(i) Every natural number is a whole number.

(ii) Every integer is a whole number.

(iii) Every rational number is a whole number.

The respective number of significant figures for the number $25.025, 0.0005 \text{and} 3.1 \times {10}^{-4}$ are

The product of three consecutive numbers is always divisible by 6. Verify this statement with the help of some examples.

A picture is painted on a cardboard 8 cm long and 5 cm wide such that there is a margin of 1.5 cm along each of its sides. Find the total area of the margin.