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9th Grade > Physics

THERMAL PROPERTIES OF MATTER MCQs

Total Questions : 107 | Page 6 of 11 pages
Question 51. 50 °C on Fahrenheit scale is
  1.    123 °F
  2.    120 °F
  3.    135 °F
  4.    122 °F
 Discuss Question
Answer: Option D. -> 122 °F
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 52. If a bross rod is 1m long at 0 °C and α is 1.9×10-5 K-1, then its length at 30 °C is
  1.    1.057 m
  2.    1.00057 m
  3.    1.57 m
  4.    1.0057 m
 Discuss Question
Answer: Option B. -> 1.00057 m
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 53. Latent heat of fusion of ice is
  1.    4.36 × 10⁵ Jkg-¹
  2.    2.36 × 10⁵ Jkg-¹
  3.    1.36 × 10⁵ Jkg-¹
  4.    3.36 × 10⁵ Jkg-¹
 Discuss Question
Answer: Option D. -> 3.36 × 10⁵ Jkg-¹
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 54. A brass rod is 1m long at 0 °C, if the coefficient of expansion is 1.9 * 10-5 K-1 then length at 30 °C is
  1.    1.00057 m
  2.    1.0057 m
  3.    1.057 m
  4.    15.7 m
 Discuss Question
Answer: Option A. -> 1.00057 m
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 55. Volume thermal expansion is also termed as
  1.    area thermal expansion
  2.    quadratic thermal expansion
  3.    circle thermal expansion
  4.    cubical thermal expansion
 Discuss Question
Answer: Option D. -> cubical thermal expansion
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 56. On Fahrenheit scale, the lower fixed point is marked as
  1.    100 °F
  2.    0 °F
  3.    32 °F
  4.    212 °F
 Discuss Question
Answer: Option C. -> 32 °F
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 57. At high temperature, the evaporation is
  1.    fast
  2.    low
  3.    decreasing
  4.    zero
 Discuss Question
Answer: Option A. -> fast
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 58. Normal human body's temperature is
  1.    30 °C
  2.    37 °C
  3.    42 °C
  4.    32 °C
 Discuss Question
Answer: Option B. -> 37 °C
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 59. The temperature at which a substance changes from liquid to solid is called its
  1.    constant point
  2.    boiling point
  3.    freezing point
  4.    melting point
 Discuss Question
Answer: Option C. -> freezing point
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 60. Ice changes into water at
  1.    100 °C
  2.    0 °C
  3.    132 °C
  4.    32 °C
 Discuss Question
Answer: Option B. -> 0 °C
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!

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