NEET 2020 Phase 1 | Electromagnetic Waves Question 11 | Physics

The ratio of contributions made by the electric field and magnetic field components to the intensity of and electromagnetic wave is : (c = speed of electromagnetic waves)

1 : 1

1 : c

1 : c²

c : 1

NEET 2019

MCQ (Single Correct Answer)

-1

Which colour of the light has the longest wavelength?

blue

violet

red

green

NEET 2018

MCQ (Single Correct Answer)

-1

An EM wave is propagating in a medium with a velocity $$\overrightarrow v = v\widehat i$$. The instantaneous oscillating electric field of this em wave is along +y axis. Then the direction of oscillating magnetic field of the em wave will be along

z direction

+z direction

–y direction

–x direction

NEET 2017

MCQ (Single Correct Answer)

-1

In an electromagnetic wave in free space that root mean square value of the electric field is E_rms = 6 V m^$$-$$1. The peak value of the magnetic field is

2.83 $$ \times $$ 10^$$-$$8 T

0.70 $$ \times $$ 10^$$-$$8 T

4.23 $$ \times $$ 10^$$-$$8 T

1.41 $$ \times $$ 10^$$-$$8 T

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Biology

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