The distance upto which T.V. signals can be received depend upon:
Correct answer: C. Radius of the earth and also height of the antenna
- A. Radius of the earth
- B. Height of the antenna
- C. Radius of the earth and also height of the antenna
- D. None of above
Explanation
The distance upto which T.V. signals D=√ 2hR. Where R =radius of the earth and h = height of the antenna.
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? [email protected]
About Alternating Current
Alternating current varies periodically, so phase relationships become essential when current passes through a resistor, capacitor or inductor. The chapter distinguishes resistance from capacitive and inductive reactance, explains phase lead and lag, and connects changing electric and magnetic fields with the production and properties of electromagnetic waves.
Practise Alternating Current
592 free Alternating Current MCQs from Physics, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Discussion
Stuck on an option, or know a faster way to get there? Ask or explain it here.
No comments yet. Be the first to explain this one.
Exams that ask Physics questions like this
Physics is on 16 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.
More Alternating Current questions
The waves which can travel directly along surface of the earth are known as:
An electric charge oscillating with a frequency of 1 kilo cycles second can radiate electromagnetic waves of wavelength:
Electromagnetic waves are transverse in nature is evident by:
The infra-red spectrum lies between:
Which of the following electromagnetic waves has minimum frequency?
Which of the following statements about electromagnetic waves is/are correct? (1) X-rays in vacuum travel faster than light waves in vacuum.(2) The energy of X-ray photon is greater than that of a light photon(3) Light can be polarised but X-ray cannot.