Question
A 36-litre mixture of milk and
honey contains them in the ratio 5 : 4. How much honey should be added to the mixture so that the ratio of milk to honey becomes 4 : 9?Solution
ATQ, Initially, Quantity of milk in the mixture = 36 × (5/9) = 20 litres Quantity of honey in the mixture = 36 - 20 = 16 litres Since, only honey is added therefore in the final mixture quantity of milk will remain same Quantity of honey in the final mixture = 20 × (9/4) = 45 litres Therefore, quantity of honey added = 45 - 16 = 29 litres
A person throws a ball from ground level at speed u and angle θ. The ball reaches maximum height H and range R. What is the ratio H/R?
What happens to the wavelength of light when it passes from a medium of higher refractive index to a medium of lower refractive index?
A body is projected vertically upwards with a velocity of 98 m/s. The time interval during which it is at a height greater than 392 m is:
(Take g...From the given options, the speed of sound is highest in which material?
A body of mass 3 kg has a velocity of 4 m/s. Find its kinetic energy.
The functioning of a quartz crystal in a watch is based on which principle?
What is the main principle behind the working of an electric motor?
In an experimental arrangement of a Fresnel's biprism, monochromatic light of wavelength 2. is used to produce interference fringe pattern. On introduc...
What is the name of the process by which a liquid changes into gas at all temperatures?
The refractive indices of quartz crystal for right handed and left handed circularly polarized light of wavelength 762.9 nm are 1.5391 and 1.5392 respe...