Question
Average run scored by a batsman in 14 innings is 80. In
next 6 innings, he scored runs with an average of ‘x’ so that his overall average increases by 3. Find the value of x.Solution
Total runs scored in 14 innings = 14 × 80 = 1120 Total runs scored in 20 innings = 20 × 83 = 1660 So, 6x = 1660 – 1120 = 540 Or, x = 90
Ohm’s law obeyed in -
Which planet is known as the Red Planet?
Food cans are coated with tin and not with zinc because
A constant retarding force of 20 N is applied to a body of mass 10 kg moving initially with a speed of 12 m s–1. How long does the body tak...
An electric dipole when held at 30 ֯ with respect to a uniform electric field of 103 N/c experience a torque of 12 × 10-26 Nm. C...
A person rings a metallic bell near a strong concrete wall. He hears the echo after 0.3 s. if the sound moves with a speed of 340 m/s, how far is the wa...
Which of the following processes is responsible for the rusting of iron?
Two long parallel conductors are placed 8mm apart from each other carrying a current of 120 Amperes. What will be force per meter length of each one?
Metals are good conductors of electricity because –
What is used in cloud seeding to produce artificial rain?