An automobile engine develops 100 kW when rotating at a speed of 1800 rev/min
An automobile engine develops 100 kW when rotating at a speed of 1800 rev/min. The torque that it delivers is…
7 years ago
Physics
When a spring is extended by 2 cm energy stored is 100 J. When extended further by 2 cm
When a spring is extended by 2 cm energy stored is 100 J. When extended further by 2 cm, the…
7 years ago
In refraction, light waves are bent on passing from one medium to the second medium
In refraction, light waves are bent on passing from one medium to the second medium, because in the second medium…
7 years ago
A body weighs 50 grams in air and 40 grams in water. How much would it weigh in a liquid
A body weighs 50 grams in air and 40 grams in water. How much would it weigh in a liquid…
7 years ago
Two balls are dropped from heights h and 2h respectively. The ratio of times
Two balls are dropped from heights h and 2h respectively. The ratio of times of these balls to reach the…
7 years ago
A coil of resistance 20 ohm and inductance 5H is connected with a 100V battery
A coil of resistance 20 ohm and inductance 5H is connected with a 100 V battery. Energy stored in the…
7 years ago
A person cannot see the objects clearly placed at a distance more than 40 cm
A person cannot see the objects clearly placed at a distance more than 40 cm. He is advised to use…
7 years ago
A scooter is going round a circular road of radius 100 m at a speed of 10m/s
A scooter is going round a circular road of radius 100 m at a speed of 10m/s. The angular speed…
7 years ago
The apparent weight of the body of mass 10 kg when it is travelling upwards with
The apparent weight of the body of mass 10 kg when it is travelling upwards with an acceleration of 2…
7 years ago
Two charges each equal to 2µ C are 0.5m apart. If both of them exist inside vacuum
Two charges each equal to 2µ C are 0.5m apart. If both of them exist inside vacuum, then the force…
7 years ago