Question
How do bats locate their prey? Explain in detail.
✓
Answer
Bats can produce and detect the sounds of very high frequency. The sound produced by the bats gets reflected back from obstacles. By detecting the echoes, bats come to know the position of the obstacles, even in the dark. This helps them to fly skilfully, and locate their prey as well.
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
State two factors on which power spent by a source depends. Explain your answer with examples.
What do you mean by electric current?
How can electric energy consumed by an electric appliance be calculated in kilowatt hour (kWh)?
In what way does the temperature of water at the bottom of a waterfall differ from the temperature at the top? Explain the reason.
Out of the two lenses one concave and the other convex state which is a convergent or a divergent type of a lens. Give a reason for your answer.
The following diagram shows a fixed coil of several turns connected to a
center zero galvanometer G and a magnet NS which can move.
(a) Describe the observation in the galvanometer if (i) The magnet is moved rapidly in the direction of arrow, (ii ) The magnet is kept still after it has moved into the coil, (iii ) The magnet~ then rapidly pulled out the coil.
(b) How would the observation alter if a more powerful magnet is used?
center zero galvanometer G and a magnet NS which can move.
(a) Describe the observation in the galvanometer if (i) The magnet is moved rapidly in the direction of arrow, (ii ) The magnet is kept still after it has moved into the coil, (iii ) The magnet~ then rapidly pulled out the coil.
(b) How would the observation alter if a more powerful magnet is used?How is the refractive index of a medium related to the speed of light in it?
Draw a neat diagram for the verification of Ohm’s law by voltmeter-ammeter method. By another diagram show the relation between p.d. and current.
40 g of ice at -16°C is dropped into water at 0°C, when 4 g of water freezes into ice. If specific heat capacity of ice is 2100 J/kg°C, what will be the latent heat of fusion of ice?
Find the kinetic energy of a car of mass 1000 kg traveling at 72 km/h.