Question
A and B entered into a business investing their capital
in the ratio of 16:21, respectively and the respective ratio of time for which they made their investment is 7:8 respectively. Find the total profit earned by A and B together, if profit share of A is Rs. 2800.Solution
Ratio of profit share of A to B = (16 Γ 7):(21 Γ 8) = 2:3 Desired Profit = 5/2 Γ 2800 = Rs. 7000
The splitting up of white light into seven colours on passing through a glass prism is called as
Smog is a combination of β
The blades of a moving jet engine are an example of:
The apparatus used in the refrigeration is
Sound and light waves both have ___________ .
What is the SI unit of power?
The motion of a freely falling body is an example of ______________ accelerated motion.
Among the following materials, which is not an insulator?
Heat stored in water vapour is β
Which of the following is the time taken for one complete oscillation of a sound wave in the density of the medium?