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12th Odisha Board
IMPORTANT
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The phase difference between E→ and B→ in e.m. wave is-

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Important Questions on Space Communication

EASY
12th Odisha Board
IMPORTANT
Bureau's Higher Secondary Physics Class 12>Chapter 21 - Space Communication>MODEL QUESTIONS>Q 3
The speed of e.m. wave in empty space is-
EASY
12th Odisha Board
IMPORTANT
Bureau's Higher Secondary Physics Class 12>Chapter 21 - Space Communication>MODEL QUESTIONS>Q 4
If speed of e.m. wave be c then the ratio of the strengths of E→ and B→ in e.m. wave is-
EASY
12th Odisha Board
IMPORTANT
Bureau's Higher Secondary Physics Class 12>Chapter 21 - Space Communication>MODEL QUESTIONS>Q 5
If λ1 and λ2 be wavelengths of γ-rays and X-rays respectively then-
EASY
12th Odisha Board
IMPORTANT
Bureau's Higher Secondary Physics Class 12>Chapter 21 - Space Communication>MODEL QUESTIONS>Q 1
What is the angle between E→ and B→ in e.m. wave?
EASY
12th Odisha Board
IMPORTANT
Bureau's Higher Secondary Physics Class 12>Chapter 21 - Space Communication>MODEL QUESTIONS>Q 2
What is the phase difference between E→ and B→ in e.m. wave?
EASY
12th Odisha Board
IMPORTANT
Bureau's Higher Secondary Physics Class 12>Chapter 21 - Space Communication>MODEL QUESTIONS>Q 3
Which has greater frequency- infrared or UV radiations?
EASY
12th Odisha Board
IMPORTANT
Bureau's Higher Secondary Physics Class 12>Chapter 21 - Space Communication>MODEL QUESTIONS>Q 4
What is the order of magnitude of the wavelength of γ-rays?
EASY
12th Odisha Board
IMPORTANT
Bureau's Higher Secondary Physics Class 12>Chapter 21 - Space Communication>MODEL QUESTIONS>Q 5
Write the wavelength range of visible region.