NEET 2016 Phase 1 | Electromagnetic Waves Question 14 | Physics

PREVIOUS NEXT

NEET 2016 Phase 1

MCQ (Single Correct Answer)

-1

Out of the following options which one can be used to produce a propagating electromagnetic wave ?

A chargeless particle

An accelerating charge

A charge moving at constant velocity

A stationary charge

AIPMT 2015

MCQ (Single Correct Answer)

-1

The energy of the em waves is of the order of 15 keV. To which part of the spectrum does it belong ?

Ultraviolet rays

$$\gamma - rays$$

X-rays

Infra-red rays

AIPMT 2015 Cancelled Paper

MCQ (Single Correct Answer)

-1

A radiation of energy 'E' falls normally on a perfectly reflecting surface. The momentum transferred to the surface is (C = Velocity of light)

$${{2E} \over {{C^2}}}$$

$${E \over {{C^2}}}$$

$${E \over C}$$

$${{2E} \over C}$$

AIPMT 2014

MCQ (Single Correct Answer)

-1

Light with an energy flux of 25 $$ \times $$ 10⁴ W m^$$-$$2 falls on a perfectly reflecting surface at normal incidence. If the surface area is 15 cm², the average force exerted on the surface is

1.25 $$ \times $$ 10^$$-$$6 N

2.50 $$ \times $$ 10^$$-$$6 N

1.20 $$ \times $$ 10^$$-$$6 N

3.0 $$ \times $$ 10^$$-$$6 N

PREVIOUS NEXT

NEET Subjects

Biology

Botany

Zoology

Human Health and Diseases Body Fluids and Its Circulation Locomotion and Movement Neural Control and Coordination Reproduction in Organisms Reproductive Health Structural Organisation in Animals Digestion and Absorption Excretory Products and Their Elimination Chemical Coordination and Integration Human Reproduction Animal Kingdom Breathing and Exchange of Gases Evolution