Home
Class 11
PHYSICS
A jet plane flies in the air because...

A jet plane flies in the air because

A

The gravity does not act on bodies moving with high speeds

B

The thrust of the jet compensates for the force of gravity

C

The flow of air around the wings causes an upward force, which compensates for the force of gravity

D

The weight of air whose volume is equal to the volume of the plane is more than the weight of the plane

Text Solution

Verified by Experts

The correct Answer is:
B
Doubtnut Promotions Banner Mobile Dark
|

Topper's Solved these Questions

  • NEWTONS LAWS OF MOTION

    ERRORLESS |Exercise Equilibrium of Force|18 Videos

  • NEWTONS LAWS OF MOTION

    ERRORLESS |Exercise Motion of Connected Bodies|23 Videos

  • NEWTONS LAWS OF MOTION

    ERRORLESS |Exercise Third Law of Motion|24 Videos

  • MOTION IN TWO DIMENSION

    ERRORLESS |Exercise Exercise|319 Videos

  • ROTATIONAL MOTION

    ERRORLESS |Exercise Practice Problems (Problems based on motion of connected mass)|10 Videos

Similar Questions

Explore conceptually related problems

An aeroplane flies in the air.

A jet plane flies at an altitude of 1 km at a speed twice that of sound. How far away will the plane be from an observer when he first hears it coming?

Knowledge Check

  • A jet plane flies through air with a velocity of 2 Mach. While the velocity of sound is 332 mis, the air speed of the plane is

    A
    166 m/s
    B
    66.4 km/s
    C
    332 m/s
    D
    664 m/s

  • Anhydrous AlCl_(3) produces fumes in the air because of

    A
    oxidation
    B
    reduction
    C
    dimerization
    D
    hydrolysis

  • The proposal to ban supersonic jet planes in Russia is because (A) They travel with very high speed (B) It is dangerous to travel in them (C) Their exhaust gases react with ozone

    A
    A & B
    B
    B
    C
    C
    D
    A

    • Similar Questions

    Explore conceptually related problems

    A bomb is dropped dfrom a plane flying horizontally with uniform speed. Show that the bomb will expode vertically below the plane.Is the statement true if the plane flies with uniform speed but not horizontally?

    The angle of elevation of a jet plane from a point A on the grund is 60^(@). After and flight of 30 seconds,the angle of elevation changes to 30^(@). If the jet plane is flying at a constant height of 3600sqrt(3)m, find the speed of the jet plane.

    The angle of elevation of a jet plane from a point A on the ground is 60^(@). After a flight of 15 seconds,the angle of elevation changes to 30^(@). If the jet plane is flying at a constant height of 1500sqrt(3) meter,find the jet plane.(sqrt(3)=1.732)

    Alkali metals taenish in dry air because ______.

    Flying of rockets and jet planes is explained on the basis of

    Home
    Profile