BCECE SERIES Physics
Thermal Properties Of Matter
4 previous year questions.
Volume: 4 Ques
Yield: Medium
High-Yield Trend
1
2022 1
2010 1
2009 1
2003 Chapter Questions 4 MCQs
01
PYQ 2003
medium
physics ID: bcece-20
The wavelength of maximum energy, released during an atomic explosion was . Given that the Wien's constant is , the maximum temperature attained must be of the order of :
1
2
3
4
02
PYQ 2009
medium
physics ID: bcece-20
A bimetallic strip consists of brass and iron when it is heated it bends into an arc with brass on the convex and iron on the concave side of the arc. This happens because
1
brass has a higher specific heat capacity than iron
2
density of brass is more than that of iron
3
it is easier to bend an iron strip than a brass strip of the same size
4
brass has a higher coefficient of linear expansion than iron
03
PYQ 2010
medium
physics ID: bcece-20
As temperature of a black body is raised, wavelength corresponding to maximum energy reduces. Higher temperature would mean higher energy and hence higher wavelength.
1
Both assertion and reason are true and reason is the correct explanation of assertion
2
Both assertion and reason are true but reason is not the correct explanation of assertion
3
Assertion is true but reason is false
4
Both assertion and reason are false
04
PYQ 2022
medium
physics ID: bcece-20
A baby cools from 50°C to 40°C in 5 min. The surrounding temperature is 20°C. In what further time (in minutes) will it cool to 30°C?
1
5
2
3
4
10