List of top Physical Sciences Questions

If a solid cube of 7 kg having an edge of length 10 cm floats in water, then the volume of the cube outside of the water is (let the density of the water 1000 kg/m³.)
Match the following:
In any electrical circuit, the direction of flow of current is
Which of the following statements are correct?
(i) Velocity of sound waves is greater in solids than liquids.
(ii) Velocity of sound waves in vacuum is 330 m/s.
(iii) Sound waves are longitudinal waves.
(iv) Velocity of sound waves in vacuum is zero.
According to Bohr model, the maximum number of electrons occupying M-shell will be
A displacement-time graph shown below represents
displacement-time graph
Which planet's rotation is different from the earth’s rotation?
A person can hear a sound of frequency
Which of the following is a set of homogeneous mixtures?
1. Air
2. Mist
3. Sugar solution
4. Milk
A force acting on an object of mass 500 g changes its velocity from 200 cm/s to 0.2 m/s. The change in momentum
How many moles of carbon makes 3.6 g of carbon ?
The volume of a certain amount of ideal gas at 30°C and 200 cm of Hg pressure is 90 ml. The gas is expanded to 300 ml keeping the temperature constant, then the pressure of the expanded gas is
The length of an object was measured to be 60 cm by a linear scale having least count 1 mm. What is the possible percentage error in the measurement?
Newton's first law of motion leads us to-
Which is/are correct for \(γ\)-ray?
Which of the followings are derived physical quantities ?
Due to which property of water raindrops are spherical in shape ?
Which of the following is/are correct for any gas?
Which of the following statement/s is/are correct at NTP?
Which of the following statement(s) is/are correct when α, β, γ are the coefficients of linear expansion, surface expansion and volume expansion respectively of a solid ?
Denatured spirit contains
German Silver contains
An object is sliding down an inclined plane. The velocity changes at a constant rate from 10 cm/s to 15 cm/s in two seconds. What is its acceleration ?
2 u mass is equivalent to
In electroplating of silver, the electrolyte is