$A$ spherical insulating ball and a spherical metallic ball of the same size and mass are dropped from the same height. Choose the correct statement out of the following (Assume negligible air friction).
- ATime taken by them to reach the earth's surface will be independent of the properties of their materials.
- BInsulating ball will reach the earth's surface earlier than the metal ball.
- CBoth will reach the earth's surface simultaneously.
- DMetal ball will reach the earth's surface earlier than the insulating ball.
Explore More
Similar Questions
$A$ coil is suspended in a uniform magnetic field,with the plane of the coil parallel to the magnetic lines of force. When a current is passed through the coil,it starts oscillating; it is very difficult to stop. However,if an aluminium plate is placed near the coil,it stops. This is due to:
$A$ light disc made of aluminium (a nonmagnetic material) is kept horizontally and is free to rotate about its axis as shown in the figure. $A$ strong magnet is held vertically at a point above the disc away from its axis. On revolving the magnet about the axis of the disc,the disc will (figure is schematic and not drawn to scale)-
$A$ bar magnet falls from a height $h$ through a metal pipe. Its acceleration after coming out of the pipe is:
The working of magnetic braking of trains is based on
MediumKCET 2017
View SolutionIn which of the following devices,the eddy current effect is not used?
Vedclass Products
For Students
Vedclass Test Series
Mock tests in real JEE/NEET style with performance analysis. 5-day free trial.
Start Free TrialFor Teachers
Exam Paper Generator
Generate Set A/B/C/D exam papers from 7.5L+ questions in 2 minutes. 3 chapters free.
Try FreeFor Institutes
Online Exam Module
Live online exams with unlimited students, 360° analytics & white-label branding.
See Demo