Find Out What You Want: AIEEE Practice Questions On Physics...

AIEEE Practice Questions On Physics...

Wednesday, December 22, 2010

The rays of light traveling from a distant object are incapable of converging at a common point after refraction through a thin lens. This is known as

Selected	Possible Answer
	chromatic aberration
	astigmatism
	invisibility
	spherical aberration

The maximum error in the measurement of mass and density of the cube are 3% and 9% respectively. The maximum error in the measurement of length will be

Selected	Possible Answer
	9%
	4%
	6%
	7%

The heat generated in a circuit depend upon the resistance. Current and time for which the current is flown. If the errors in measuring the above are as 1%, 2% and 1%, then maximum error in measuring heat will be

Selected	Possible Answer
	3%
	2%
	5%
	6%

A semi conducting device is connected in a series circuit with a battery and a resistance. A current is found to pass through the circuit. If the polarity of the battery is reversed the current drops to almost zero the device may be

Selected	Possible Answer
	a p-n junction
	a p-type semi-conductor
	an n-type semi-conductor
	an intrinsic semi-conductor

The length, width the thickness of a block are $(100.0\pm 0.1)$ cm, $(10.00\pm 0.01)$ cm and $(1.000\pm 0.001)$ cm respectively. The most probable error in its volume will be

Selected	Possible Answer
	$\pm 0.111cm^3$
	$\pm 0.012cm^3$
	$\pm 0.03cm^3$
	None of the above

The length of a strip is measured with metre rod is 10.0 cm. Its width measured with vernier callipers is 1.00 cm. The least count of metre rod is 0.1 cm and that of vernier callipers 0.01 cm. What will be error in its area?

Selected	Possible Answer
	$\pm 0.1 cm^2$
	$\pm 0.11 cm^2$
	$\pm 0.01 cm^2$
	$\pm 0.2 cm^2$

If the radius of earth decrease by 1%, its mass remaining the same, the acceleration due to gravity on the surface will

Selected	Possible Answer
	decrease by 1%
	increase by 1%
	increase by 2%
	decrease by 2%

These is an air-filled 1pF parallel plate capacitor, when the plate separation is doubled and the space is filled with wax, the capacitance increases to 2pE. The dielectric constant of wax is

Selected	Possible Answer
	2
	6
	4
	8

Two wires of same length are shaped into a square and a circle. If they carry same currant ratio of the magnetic moments is:

Selected	Possible Answer
	2 : $\pi$
	4 : $\pi$
	$\pi$ : 2
	$\pi$ : 4

If a magnet is suspended at an angle $30^{\circ}$ to the magnetic meridian, the dip needle make an angle of $60^{\circ}$ with the horizontal. The true value of dip is