Home
Class 12
PHYSICS
Why is a slight shaking of pictures of a...

Why is a slight shaking of pictures of a television screen noticed when a low lying air craft passes over head?

Text Solution

Verified by Experts

When an aircraft flies at small height from the
surface of earth and passes over the antenna. It
intercepts the T.V. waves reaching the antenna
of our T.V. This causes a slight shaking of picture
in our T.V. set.
Promotional Banner

Topper's Solved these Questions

  • COMMUNICATION SYSTEMS

    PRADEEP|Exercise Short A/Q (3 marks)|8 Videos

  • COMMUNICATION SYSTEMS

    PRADEEP|Exercise Long answer questions|3 Videos

  • ATOMS AND NUCLEI

    PRADEEP|Exercise Assertion- Reason type question 12|1 Videos

  • CURRENT ELECTRICITY

    PRADEEP|Exercise Problems for Practice (B)|2 Videos

Similar Questions

Explore conceptually related problems

What is the reason behind the disturbing of incoming and reflected signals when a low flying aircraft passes overhead, which results in slight shaking of the picture on our TV screen ?

Answer the following questions : (a) When a low flying aircraft passes overhead, we sometimes notice a slight shaking of the piture on our TV screen. Suggest a possible expanation. (b) As you have learnt in the text, the principle of linear superposition of wave displacement is basic to understanding intensity distributions in diffractions and interference patterns. What is the justification of this principle ?

What happens when : (a) Ozone is passed through acidified stannous chloride solution. (b) Potassium iodide is heated with conc. H_2 SO_4 . (c) Sulphur is boiled with caustic soda solution. (d) Ozone reacts with potassium ferrocyanide solution. ( e) Ozone is treated with ethylene. (f) Sulphur dioxide is bubbled through aqueous solution of copper sulphate in presence of potassium thiocyanate. (g) Sulphur dioxide gas, water vapour and air are passsed over heated sodium chloride. (h) Sulphuric acid is treated with PCl_5 .

Name the energy transfers which occur when : (a) an electric bell rings (b) someone speaks into a microphone (c) there is a picture on a television screen (d) a torch is on

You might have observed on a dry day that when you touch the screen of a television or computer monitor (with picture tube), you get a slight shock. Why does it happen?

When a mixture of air and steam is passed over red hot coke, the outgoing gas is: