Physics - MOST IMPORTANT RRB Ministerial & Isolated Categories Previous Year Questions
Practice real questions from previous year exams of RRB Ministerial & Isolated Categories.
What is the value of the force exerted by the Earth on a satellite, if the mass of the Earth is 6 × 10²⁴ kg and the mass of the satellite is 400 kg. The satellite is orbiting the Earth at a distance of 400 km from its surface. The radius of the Earth is 6400 km and G = 6.67 x 10⁻¹¹ N m² /kg².
Which of the following statements about Thomson’s model are correct? i. Atoms consist of a positively charged sphere. ii. Electrons are randomly moving outside the sphere. iii. The number of positive and negative charges is equal. iv. The atom is overall neutral.
Absolute refractive index of a medium is the ratio of the speed of light in ____________ to the speed of light in __________.
Which of the following are examples from daily life where we feel cooling due to evaporation? i. Sweating in summer ii. Blowing air on hot tea or coffee iii. Earthen pot (matka) cooling water
For a given medium, a sound wave has a frequency of 3 kHz and a wavelength of 15 cm. How much time will it take to travel 9 km?
What kind of image is formed by a convex mirror when an object is placed at infinity?
Which of the following is NOT true about the Universal Law of Gravitation?
Select the option that is true regarding the following two statements labelled Assertion (A) and Reason (R). Assertion (A): A rubber band is a solid because it regains its original shape when the stretching force is removed. Reason (R): Solids are rigid and have negligible compressibility.
According to Fleming’s Left-Hand Rule, if the forefinger points in the direction of the magnetic field and the middle finger points in the direction of the current, what does the thumb indicate?
What happens when the vibration of a sound source becomes faster?
Which type of lens is known as a diverging lens?
A person with eye defect of __________ cannot see nearby objects distinctly, which is corrected using a __________ lens of suitable power.
Which of the following statements is true about the relationship between an object’s weight and its mass at a given place?
The rate of evaporation increases with: i. an increase in surface area ii. an increase in temperature iii. a decrease in humidity
When white light passes through a prism, which colour is deviated the most with respect to the incident ray?
What happens to the total resistance when multiple resistors are connected in series?
In a high jump event, why are athletes made to land on a cushioned or sand bed instead of a hard surface?
What do we call the distance between the pole and the principal focus of a spherical mirror?
Given below are two statements. Select the correct answer from the options given for these statements. Statement I: Particles of matter are continuously moving, that is, they possess what we call kinetic energy. Statement II: With increase in temperature, the kinetic energy of the particles also increases.
A student pours 30 ml of juice into three differently shaped containers. The juice takes different shapes in each container, but the level of liquid varies. This shows that: