If the cold junction of a thermo-couple is kept at 0⁰C and the hot junction is kept at T⁰C then the relation between neutral temperature (Tₙ) and temperature of inversion (Ti) is
Options
(a) […]
A body is placed in an insulating container at temperature 227⁰C. In order to keep its temperature at 727⁰C, power of 60 watt is required. Then power required to keep its temperature at 1227⁰C will […]
A body of length 1 m having cross-sectional area 0.75 m² has heat flow through it at the rate of 6000 joule/sec. Then find the temperature difference if K=200 Jm⁻¹K⁻¹
Options
(a) 20⁰C (b) […]
If the interatomic spacing in a steel wire is 3.0 Å and Y of steel is 20×10¹⁰ N/m², then force constant is
Options
(a) 6×10⁻² N/Å (b) 6×10⁻⁹ N/Å (c) 4×10⁻⁵ N/Å (d) 6×10⁻⁵ […]
Which of the following statements is correct?
Options
(a) A good absorber is a bad emitter (b) Every body absorbs and emits radiations at every temperature (c) The energy of radiation emitted from a […]
Which of the following is true for elastic potential energy density?
Options
(a) Energy density=1/2 x strain x stress (b) Energy density= (strain)² x volume (c) Energy density= strain x volume (d) Energy density […]
Which is correct relation?
Options
(a) Y<σ (b) Y>σ (c) Y=σ (d) σ=±1
Correct Answer:
Y>σ
Explanation:
No explanation available. Be the first to write the explanation for this question by commenting below.
Stress to strain ratio is equivalent to
Options
(a) Modulus of rigidity (b) Poisson’s ratio (c) Reynold number (d) Fund number
Correct Answer:
Modulus of rigidity
Explanation:
No explanation available. Be the first to […]
A metal bar of length L and area of cross-section A is clamped between two rigid supports. For the material of the rod, Young’s modulus is Y and coefficient of linear expansion is α. If […]
According to Hook’s law of elasticity, if stress is increased, the ratio of stress to strain
Options
(a) Increases (b) Decreases (c) Becomes zero (d) Remains constant
Correct Answer:
Remains constant
Explanation:
No explanation […]
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