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Thermal Properties of Matter Physics - Thermal Properties of Matter

Maharashtra Board - STD 11 Science - Physics (MSBSHSE - English Medium). 56 questions in this chapter.

Question types

Thermal Properties of Matter question types

56 questions across 5 question groups — pick any mix to generate a Physics paper with step-by-step answer keys.

56
Questions
5
Question groups
5
Question types
Sample Questions

Thermal Properties of Matter questions

One sample from each question group in this chapter. Select any group above to see the full set with answer keys.

Q 1M.C.Q (1 Marks)1 Mark
Water falls from a height of 200 m. What is the difference in temperature between the water at the top and bottom of a water fall given that specific heat of water is 4200 J kg-1 °C-1?
  • A
    0.96 °C
  • B
    1.02 °C
  • ✓
    0.46 °C
  • D
    1.16 °C

Answer: C.

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Q 2M.C.Q (1 Marks)1 Mark
Consider the following statements-
$(I)$ The coefficient of linear expansion has dimension $K ^{-1}$
$(II)$ The coefficient of volume expansion has dimension $K ^{-1}$
  • ✓
    I and II are both correct
  • B
    I is correct but II is wrong
  • C
    II is correct but I is wrong
  • D
    I and II are both wrong

Answer: A.

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Q 3M.C.Q (1 Marks)1 Mark
If α, β and γ are coefficients of linear, area l and volume expansion of a solid then
  • A
    α: β:γ 1:3:2
  • ✓
    α:β:γ 1:2:3
  • C
    α:β:γ 2:3:1
  • D
    α:β:γ 3:1:2

Answer: B.

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Q 4M.C.Q (1 Marks)1 Mark
If two temperatures differ by 25 °C on Celsius scale, the difference in temperature on Fahrenheit scale is
  • A
    65°
  • ✓
    45°
  • C
    38°
  • D
    25°

Answer: B.

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Q 5M.C.Q (1 Marks)1 Mark
A glass bottle completely filled with water is kept in the freezer. Why does it crack?
  • A
    Bottle gets contracted
  • B
    Bottle is expanded
  • ✓
    Water expands on freezing
  • D
    Water contracts on freezing

Answer: C.

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Q 15Answer the following in Brief3 Marks
A metal sphere cools from $80^{\circ} C$ to $60^{\circ}\ C$ in $6\ min$ . How much time with it take to cool from $60^{\circ}\ C$ to $40^{\circ}\ C$ if the room temperature is $30^{\circ}\ C$ ?
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Q 16Answer the following in Brief3 Marks
Find the temperature difference between two sides of a steel plate $4\ cm$ thick, when heat is transmitted through the plate at the rate of $400\ k$ cal per minute per square metre at steady state. Thermal conductivity of steel is $0.026\ kcal/m s K.$
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Q 17Answer the following in Brief3 Marks
An electric kettle takes $20$ minutes to heat a certain quantity of water from $0^\circ\ C$ to its boiling point. It requires $90$ minutes to turn all the water at $100^\circ\ C$ into steam. Find the latent heat of vaporisation. (Specific heat of water $= 1cal/g^\circ\ C$)
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Q 22Answer the following in Detail4 Marks
An aluminium rod and iron rod show $1.5\ m$ difference in their lengths when heated at all temperature. What are their lengths at $0^{\circ} C$ if coefficient of linear expansion for aluminium is $24.5 \times 10^{-6} /{ }^{\circ} C$ and for iron is $11.9 \times 10^{-6} /{ }^{\circ} C$
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Q 23Answer the following in Detail4 Marks
A metal sphere cools at the rate of $0.05^{\circ} C / s$ when its temperature is $70^{\circ} C$ and at the rate of $0.025^{\circ} C / s$ when its temperature is $50^{\circ} C$. Determine the temperature of the surroundings and find the rate of cooling when the temperature of the metal sphere is $40^{\circ} C$.
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