Age of the universe is about \( 10^{10} \mathrm{yr} \), whereas the mankind has existed for \( 1...

Channel:
PW Solutions
Subscribers:
451,000
Published on ● Video Link: https://www.youtube.com/watch?v=zMnZTZiYAw8


Duration: 2:50
37 views
0

Age of the universe is about \( 10^{10} \mathrm{yr} \), whereas the mankind has existed for \( 10^{6} \mathrm{yr} \). For how many seconds would the man have existed, if age of universe were 1 day?
(a) \( 9.2 \mathrm{~s} \)
(b) \( 10.2 \mathrm{~s} \)
(c) \( 8.6 \mathrm{~s} \)
(d) \( 10.5 \mathrm{~s} \)
📲PW App Link - https://bit.ly/YTAI_PWAP
🌐PW Website - https://www.pw.live



Other Videos By PW Solutions


2022-11-07Obtain the dimensional formula for universal gas constant. (a) \( \left[\mathrm{M} \mathrm{L}^{2...
2022-11-07Dimensions of force are (a) \( \left[\mathrm{M}^{2} \mathrm{LT}^{-1}\right] \) (b) \( \left[\mat...
2022-11-07The relative error in the value of a number specified to significant figures depends on (a) numb...
2022-11-07The numbers 5355 and 5345 on rounding off to 3 significant figures will give (a) \( 5.35 \) and ...
2022-11-07A simple pendulum is being used to determine the value of gravitational acceleration \( g \) at ...
2022-11-07In an experiment, four quantities \( a, b, c \) and \( d \) are measured with percentage error \...
2022-11-07Calculate the relative errors in measurement of two masses \( 1.02 \mathrm{~g} \pm 0.01 \mathrm{...
2022-11-07Two clocks are being tested against a standard clock located in a national laboratory. At 12:00:...
2022-11-07The ratio of the volume of the atom to the volume of the nucleus is of the order of (a) \( 10^{1...
2022-11-07A device which is used for measurement of length to an accuracy of about \( 10^{-4} \mathrm{~m} ...
2022-11-07Age of the universe is about \( 10^{10} \mathrm{yr} \), whereas the mankind has existed for \( 1...
2022-11-07To reduce the least count error, instruments need higher (a) precision (b) accuracy (c) mean val...
2022-11-07The moon is observed from two diametrically opposite points \( A \) and \( B \) on earth. The an...
2022-11-07If the value of work done is \( 10^{10} \mathrm{gcm}^{2} \mathrm{~s}^{-2} \), then its value in ...
2022-11-07The damping force on an oscillator is directly proportional to the velocity. The unit of the con...
2022-11-07The unit of thermal conductivity is (a) \( \mathrm{J} \mathrm{m}^{-1} \mathrm{~K}^{-1} \) (b) \(...
2022-11-07Match the Column I (technology) with Column II (scientific principle) and select the correct ans...
2022-11-07The solid angle subtended by the periphery of an area \( 1 \mathrm{~cm}^{2} \) at a point situat...
2022-11-07Amongst the following physical quantities which one has the same unit in all three system of uni...
2022-11-07Match the Column I (force) with Column II (relative strength) and select the correct answer from...
2022-11-07Match the Column I (name of physicists) with Column II (contribution/discovery) and select the c...


Tags:
pw