Mary bought a tank whose dimensions are 5.6cm, 8.2cm and 12.8 cm. The volume of water (in cm³) that can be stored in tank (correct up to four significant figures) is:
For a series LCR circuit the input impedance at resonance
The figure shows a dish kept at an orientation with a marble placed on it. If the marble in figure is displaced slightly, it would rattle about for a while and come to rest in its original place. This is an example of :
The gravitational force on a body of mass m at a distance r from the centre of the Earth for r < R, where R is the radius of Earth, is proportional to:
If the coefficient of friction of a surface is μ = √3, then the angle of inclination of a plane to make a block on it to just start sliding is
Given the instantaneous value of current from a.c. source is I = 8 sin 623t. Find the r.m.s value of current
The car A is used to pull a load B with the pulley arrangement shown. If A has a forward velocity v determine an expression for the upward velocity vB of the load in terms of vA and θ.θ is angle between string and horizontal
A hemispherical portion of radius R is removed from the bottom of a cylinder of radius R. The volume of the remaining cylinder is V and its mass is M. It is suspended by a string in a liquid of density r where it stays vertical. The upper surface of the cylinder is at a depth h below the liquid surface. The force on the bottom of the cylinder by the liquid is
[JEE 2001 (Scr.)]
The moment of inertia of a uniform semicircular wire of mass M and radius r about a line perpendicular to the plane of the wire through the centre is
At what altitude will the acceleration due to gravity be 25% of that at the earth’s surface (given radius of earth is R)?
Two strips of metal are riveted together at their ends by four rivets, each of diameter 6.0 mm. What is the maximum tension that can be exerted by the riveted strip if the shearing stress on the rivet is not to exceed 6.9 × 107Pa? Assume that each rivet is to carry one quarter of the load.
Both earth and moon are subject to the gravitational force of the sun. As observed from the sun, the orbit of the moon
A thin uniform rod of length l and mass m is swinging freely about a horizontal axis passing through its end. Its maximum angular speed is w. Its centre of mass rises to maximum height of
[AIEEE 2009]
The property by virtue of which the free surface of a liquid at rest behaves like an elastic stretched membrane tending to contract so as to occupy minimum surface area is known as
Which of the following is the most important factor underlying the success of a new teacher?
How does NEP 2020 propose to address the flexibility in subject choices for students in higher education?
What is the purpose of the National Testing Agency (NTA) in the context of NEP 2020?
Howard Gardner's theory of multiple intelligences emphasizes:
The factor that helps a teacher to solve problems like backwardness, cheating, indiscipline, and improper environment is
Mrs. Sharma can impart learning with better skill and results because she possesses
Which of the following belief of a teacher is detrimental to student’s learning?
Which of the following organizations is set to launch its "One Nation, One Registration platform"?
Which of the following planet is referred to as 'Earth's twin'?
In 1992, Rio Declaration was conducted on the issue of environment and development. In this conference, an action plan was framed for sustainable development. What was the name of that action plan?
If 2 cubes have their volumes in the ratio 8 : 27, what is the ratio of the length of their edges?
How many rotations of a wheel with a 21 m radius are required to cover a distance of 6.60 km?