Physics
Motion
Easy
Question
The ratio of the numerical values of the average velocity and average speed of a body is always
- Unity
- Unity or less
- Unity or more
- Less than unity
The correct answer is: Unity or less
Related Questions to study
Physics
A man walks on a straight road from his home to a market 2.5 km away with a speed of 5 km/h. Finding the market closed, he instantly turns and walks back home with a speed of 7.5 km/h. The average speed of the man over the interval of time 0 to 40 min. is equal to:
A man walks on a straight road from his home to a market 2.5 km away with a speed of 5 km/h. Finding the market closed, he instantly turns and walks back home with a speed of 7.5 km/h. The average speed of the man over the interval of time 0 to 40 min. is equal to:
PhysicsMotion
Physics
A particle moves along a semicircle of radius 10m in 5 seconds. The average velocity of the particle is
A particle moves along a semicircle of radius 10m in 5 seconds. The average velocity of the particle is
PhysicsMotion
Physics
A particle is constrained to move on a straight line path. It returns to the starting point after 10 sec. The total distance covered by the particle during this time is 30 m. Which of the following statements about the motion of the particle is false
A particle is constrained to move on a straight line path. It returns to the starting point after 10 sec. The total distance covered by the particle during this time is 30 m. Which of the following statements about the motion of the particle is false
PhysicsMotion
Physics
A 150 m long train is moving with a uniform velocity of 45 km/h. The time taken by the train to cross a bridge of length 850 meters is
A 150 m long train is moving with a uniform velocity of 45 km/h. The time taken by the train to cross a bridge of length 850 meters is
PhysicsMotion
Physics
Which of the following is a one dimensional motion
Which of the following is a one dimensional motion
PhysicsMotion
Physics
A train has a speed of 60 km/h. for the first one hour and 40 km/h for the next half hour. Its average speed in km/h is
A train has a speed of 60 km/h. for the first one hour and 40 km/h for the next half hour. Its average speed in km/h is
PhysicsMotion
Physics
A car travels from A to B at a speed of 20km/hr and returns at a speed of 30km/hr . The average speed of the car for the whole journey is
A car travels from A to B at a speed of 20km/hr and returns at a speed of 30km/hr . The average speed of the car for the whole journey is
PhysicsMotion
Physics
A lens always forms a virtual, upright, and diminished image of an object placed in front of it. It is a ____ lens.
A lens always forms a virtual, upright, and diminished image of an object placed in front of it. It is a ____ lens.
PhysicsGrade-7
Physics
What kind of images does a convex lens not form?
What kind of images does a convex lens not form?
PhysicsGrade-7
Physics
The lens of a pair of spectacles used by a person is thinner in the middle and thicker towards the edges. The lens used in the spectacles is ____.
The lens of a pair of spectacles used by a person is thinner in the middle and thicker towards the edges. The lens used in the spectacles is ____.
PhysicsGrade-7
Physics
A concave lens forms a virtual, upright, and diminished image of an object ____.
A concave lens forms a virtual, upright, and diminished image of an object ____.
PhysicsGrade-7
Physics
A lens can only form a virtual, upright, and diminished images irrespective of the distance between the lens and the object. It is a ____ lens.
A lens can only form a virtual, upright, and diminished images irrespective of the distance between the lens and the object. It is a ____ lens.
PhysicsGrade-7
Physics
In the setup shown in the picture below, the sun rays are focused on a paper by a magnifying glass, which results in the paper catching fire. If the magnifying glass was replaced by a concave lens, the paper does not catch fire. Why?
In the setup shown in the picture below, the sun rays are focused on a paper by a magnifying glass, which results in the paper catching fire. If the magnifying glass was replaced by a concave lens, the paper does not catch fire. Why?
PhysicsGrade-7
Physics
The angle between the incident ray and the emergent ray is not equal to ____ degrees when the light gets refracted through a spherical lens.
The angle between the incident ray and the emergent ray is not equal to ____ degrees when the light gets refracted through a spherical lens.
PhysicsGrade-7
Physics
Concave lenses are also called ____ lenses.
Concave lenses are also called ____ lenses.
PhysicsGrade-7
