Question
Jar A contains ‘X’ ml mixture of milk and
water in the ratio of 4 :3. Jar B contains ‘X’ ml mixture of milk and water in the ratio of 5:1, When both jars are mixed in Jar C the what will be the ratio of milk and water in jar C?Solution
Jar A Milk Water 4 : 3 In Jar B Milk Water 5 : 1 Sum of first jar is 7 & that if second is 6. LCM of 7 & 6 is 42. So multiplying 1st by 6 & that of 2nd. In jar A, M:W = 24 : 18 In jar B, M:W = 35 : 7 So adding both values, in Jar C, M: W = 59 : 25
A transformer has 1000 turns in the primary and 100 in the secondary coil. If input voltage is 220 V, output voltage is:
What is the value of 1 horsepower in watts? Â
When a capacitor is fully charged in a DC circuit, the current through it is:
What is the name of the process by which a liquid changes into gas at all temperatures? Â
The focal length of a concave mirror is 20 cm. Where should an object be placed to get an image of the same size?
Which of the following phenomena establishes the transverse nature of light waves?
Two spherical conductors of radii 2 cm and 8 cm are connected. The ratio of charges on them at equilibrium is:
What is the work done when a force of 10 N moves an object by 5 m in the direction of the force? Â
A wire loop in the shape of a square of side a carries a current I. If an infinitely long straight wire carrying the same current passes through the ce...