RRB Group D Physics — practice questions
24 free MCQs with worked solutions. Tap any question for the answer + explanation, or practice them all in the app.
Practice RRB Group D Physics in the app →Which instrument is used to find out wind direction?Which India-born physicist is credited with inventing the optical fibre?What is the freezing point of water on the Fahrenheit scale?Friction can be reduced by changing from:The escape velocity of a rocket fired from the Earth is the velocity needed to overcome the:The SI unit of force is the:The free surface of a liquid tends to contract to the smallest possible area due to the:In an electric circuit, a rheostat is commonly used to change which of the following quantities?The time period of a vibrating body is 0.04 s. What is the frequency of the wave produced?What is the scientific term for the speed of an object moving in a definite direction?An object of mass 13 kg moves with a uniform velocity of 5 m/s. What is its kinetic energy?Which of the following represents the equation for the position-time relation in uniformly accelerated motion?Which of the following laws is associated with the heating effect of electric current?The force of gravitation between two bodies in the universe does NOT depend on:Which of the following types of energy varies with the height of an object?In case of hypermetropia (far-sightedness), where is the image of a nearby object formed?How is 'power' defined in physics?An object starts from rest and attains a speed of 5 m/s in 2 seconds. What is its acceleration?The product of force and displacement is called:A 1 kg object is dropped to the ground from a height of 30 m. The work done by the force of gravity will be (tMechanical energy is:A 10 kg object is moving at a speed of 5 m/s. The kinetic energy of the object will be:An object is placed in front of a concave mirror at a point between its focal point and centre of curvature. TFree fall is possible only in: