NDA questions
2827 published questions with worked solutions.
- For an object in gravitational field, the gravitational potential is the same at two points A and B, but the gravitational field...
- The position vector of a particle is given by r = 3 ,t^2 , i + 2 ,t , j + 5 , k . Which one of the following statements is...
- A ball is dropped from rest from height h above the ground in frame S (the Earth's frame). Another frame S' is moving upwards...
- A constant power machine pulls a block on a smooth horizontal surface. Which one of the following correctly describes the...
- A 5 g piece of ice at –20 °C is put into m kg of water at 30 °C temperature. The heat is exchanged only between the ice and the...
- A very large container consists of an ideal gas. The speed of sound in the gas is x. When the pressure of the gas is doubled...
- An object is placed far beyond the centre of curvature of a concave mirror. The object then starts accelerating towards the...
- A particle is moved from point X to point Y under a force field. The work done depends only on the initial and final speeds....
- One year at a planet is 8 times as large as compared to the one year at the Earth. Which one of the following is correct about...
- A periscope uses two plane mirrors inclined at 45°. If the tube of the periscope is filled with a complete transparent liquid of...
- It has been observed that a mirror always forms the image between the pole and the focus, irrespective of the location of the...
- What is the upward force acting on a skydiver of mass 60 kg who is falling at a uniform speed of 2 m/s?
- With respect to electromagnetic waves, the human eye is sensitive to
- If x is the number of electrons and y is the number of nucleons present in ^ 32 _ 16 S^ 2- , then which one of the following is...
- Which one of the following forms of carbon is thermodynamically most stable?
- Consider the following statements : I. A colloid and a suspension are heterogeneous mixtures. II. Colloids can be separated from...Not in JEE Main or NEET syllabus
- A non-volatile solid solute may be separated from a solution by which of the following processes? I. Evaporation II....
- Which of the following are oxidation reactions? I. Rusting of iron II. Burning of fuel III. Rancidity of oils and fats IV....
- Consider the following statement : "Acids are substances that dissociate in water to give hydrogen ions H^+ (aq), and bases are...
- Superphosphate of lime—a phosphate fertilizer—is obtained by the reaction of