Physics questions
20027 published questions with worked solutions.
- The loudness of sound depends upon the
- Light rays move in straight lines. But through an optical fibre, they can move in any type of zigzag path because
- Compared to audible sound waves, ultrasound waves have
- A rigid body of mass 2 kg is dropped from a stationary balloon kept at a height of 50 m from the ground. The speed of the body...
- The temperature of a place on one sunny day is 113 in Fahrenheit scale. The Kelvin scale reading of this temperature will be
- Radiations coming from the Sun are mostly in the form of
- Which of the following are the characteristics of electromagnetic waves ? 1. They are elastic waves. 2. They can also move in...
- A liquid is kept in a glass beaker. Which one of the following statements is correct regarding the pressure exerted by the liquid...
- Which of the following statements is NOT correct regarding the travel of sound waves ?
- The correct relation between the radius of curvature R and focal length f of a spherical mirror is
- A lemon kept in water in a glass tumbler appears to be larger than its actual size. It is because of
- Name the scientist who first used a glass prism to obtain the spectrum of sunlight
- The cost of energy to operate an industrial refrigerator that consumes 5 kW power working 10 hours per day for 30 days will be...
- Which one of the following statements regarding magnetic field is NOT correct ?
- Which one of the following is NOT the unit of energy ?
- Two planets orbit the Sun in circular orbits, with their radius of orbit as R_1 = R and R_2 = 4R. Ratio of their periods...
- A metallic wire having resistance of 20 Ω is cut into two equal parts in length. These parts are then connected in parallel. The...
- Light of uniform intensity impinges perpendicularly on a totally reflecting surface. If the area of the surface is halved, the...
- Which one of the following statements about sound is NOT correct ?
- Which one of the following types of radiations has the smallest wavelength ?