Home
Class 12
PHYSICS
A table fan rotating at a speed of 2400 ...

A table fan rotating at a speed of 2400 revolutions per minute(rpm), is switched off and the resulting variation of the rpm with time is shown in the figure. Total number of revolutions of the fan before it comes to rest is
'(##CEN_KSR_PHY_JEE_C07_001_Q01##)'

Text Solution

Verified by Experts

The correct Answer is:
500
Doubtnut Promotions Banner Mobile Dark
|

Topper's Solved these Questions

  • CENTRE OF MASS CONVERSATION OF MOMENTUM AND COLLISION

    CENGAGE PHYSICS|Exercise Question Bank|38 Videos

  • COMMUNICATION SYSTEM

    CENGAGE PHYSICS|Exercise QUESTION BANK|19 Videos

Similar Questions

Explore conceptually related problems

A periodic voltage V varies with time t as shown in the figure. T is the time period. The ms value of the voltage is (V_(0))/(k) . Find k . '(##CEN_KSR_PHY_JEE_C24_E01_004_Q02##)'

A uniformly thick plate in the shape of an arrow head has dimensions as shown in the figure. Find the distance (in cm ) of the centre of mass from point O . '(##CEN_KSR_PHY_JEE_C08_E01_019_Q12##)'

Knowledge Check

  • A table fan, rotating at a speed of 2400 rpm, is switched off and the resulting variation of the rpm with time is shown in the figure. The total number of revolutions of the fan before it comes to rest is

    A
    420
    B
    190
    C
    280
    D
    380

  • A table fan rotating at a speed of 2400 rpm is switched off and the resulating variation of the revolution/minute time is shown in Fig. The total number of revolutions of the fan before it comes to rest is

    A
    `280`
    B
    `380`
    C
    `420`
    D
    `160`

  • A fan is rotating with a speed of 450 rec/minute. Afer being switched off it comes to rest in 10s. Assuming constant angular deceleration, calculate the number of recvolutions made by it before coming to rest.

    A
    37.5
    B
    37
    C
    38.5
    D
    None

    • Similar Questions

    Explore conceptually related problems

    The square of angular velocity omega of a certain wheel increases linearly with the angular displacement theta during 100 revolutions of the wheel's motion as shown in the figure. The time t required for given 100 revolutions is (10 m pi)/(n) . Find (m+n) . '(##CEN_KSR_PHY_JEE_C07_028_Q17##)'

    In the shown figure, the focal length of equivalent system is (50x)/( 13) . Find the value of x . '(##CEN_KSR_PHY_JEE_C26_E01_020_Q07##)'

    Find the charge (in mu C ') on the capacitor of value 2 mu F in the figure shown at steady state. '(##CEN_KSR_PHY_JEE_CO20_E01_027_Q21##)'

    A wheel has a speed of 1200 revolution per minute and is made to slow down at a rate of 4 radian/ s^(2) . The number of revolutions it makes before coming to rest is

    A wheel has a speed of 1200 revolution per minute and is made to slow down at a rate of 4 rad//s^(2) . The number of revolutions it makes before coming to rest is

    Home
    Profile