Home
Class 12
PHYSICS
Three wave A,B and C of frequencies 1600...

Three wave A,B and C of frequencies 1600 KHz, 5 MHz and 60 MHz respectively are to be transmitted from one place to another. Which of the following is the most appropriate mode of communication?

A

A is transmitted via space wave while B and C are transmitted via sky waves

B

A is transmitted via ground wave, B via sky wave and C via space wave

C

B and C are transmitted via ground wave while A is transmitted via sky wave.

D

B is transmitted via ground wave while A and C are transmitted via space wave

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

  • COMMUNICATION STSTEM

    CHHAYA PUBLICATION|Exercise NCERT EXEMPLAR QUESTIONS WITH ANSWER HINT (MULTIPLE OPTIONS CORRECT)|4 Videos
  • COMMUNICATION STSTEM

    CHHAYA PUBLICATION|Exercise EXERCISE (MULTIPLE CHOICE QUESTIONS)|13 Videos
  • COMMUNICATION STSTEM

    CHHAYA PUBLICATION|Exercise NCERT TEXTBOOK QUESTIONS WITH ANSWER HINT|7 Videos
  • CAPACITANCE AND CAPACITOR

    CHHAYA PUBLICATION|Exercise CBSE SCANNER|15 Videos
  • CURRENT ELECTRICITY

    CHHAYA PUBLICATION|Exercise CBSE SCANNER|16 Videos

Similar Questions

Explore conceptually related problems

Audio sine waves of 3 kHz frequency are used to amplitude modulate a carrie signal of 1.5 MHz. Which of the following statement are true?

Frequency orders of gamma -rays, X-rays, UV rays are a, b and c respectively. Which of the following is correct?

A is the set of factors of 12. Which one of the following is not a member of A. (A) 1 (B) 4 (C) 5 (D) 12

In vacuum, speed of light is v_(0) , frequency is n_(0) and wavelength is lambda_(0) . When a ray travels from one medium to another, the above physical quantities become v,n and lambda respectively. mu is refractive index of the medium. Which of the following statements are correct?

Let A, B, C be any three non-empty sets. If A uuB= A uuC, then which one of the following is denfinitely true ?

Atomic number of three elements A. B and C are 10, 13 and 17 respectively:- which one of them will term cation and which one an'anion?

A, B and C are three elements with atomic numbers 17,18 and 20 respectively. (1) Write theirelectronoic configuration. (2) which one of them is metal and which one a non-metal?

Three water samples namely river water, untreated sewage water and secondary effluent discharged from a sewage treatment plant were subjected to BOD test. The samples were labelled A, B and C, but the laboratory attendant did not note which was which. The BOD values of the three samples A, B and C were recorded as 20mg/L, 8mg/L and 400mg/L, respectively. Which sample of the water is most polluted? Can you assign the correct label to each assuming the river water is relatively clean?