Question
In Dec, 2016, number of male children is what percent of
the number of male adults who visited the park? Study the following table carefully and answer the questions given below: Data regarding number of visitors visiting an amusement park in a city in five different months.Solution
The half-life of a radioactive substance is 10 days. The time in which only 1/8th of the original substance remains is:
Which of the following phenomena cannot be explained by the wave theory of light?
What is the speed of sound in air at room temperature (20°C)?
A particle is moving in a uniform circular motion with constant speed v along a circle of radius r. The acceleration-of the particle is –
Which of the following quantities is a scalar?
Which of the following correctly ranks molecular speeds at a fixed temperature?
The time period of a second’s pendulum is –
When the speed of car is doubled, then what will be the braking force of the car to stop it in the same distance?
A train runs along an unbanked circular track of radius of 10 m at speed of 36 km/h. The mass of the train is 16 kg.
What is the an...
In an electric motor, energy is transformed from:
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