The ice point on the absolute scale of temperature is
0K
32K
100K
273K
Correct answer is A
The absolute zero of the scale of temperature being the ice point of the absolute scale of temperature is 0K, which is -273°C.
0.0\(ms^{-1}\)
5.6\(ms^{-1}\)
10.6\(ms^{-1}\)
15.0\(ms^{-1}\)
Correct answer is C
The horizontal component of velocity, \(V_{x}\), is unaffected by the acceleration of free fall and remains constant.
\(V_{x} = U_{x} = Ucos\theta\)
= \(15 \times cos45 = 15\times 0.7071\)
\(\approxeq 10.6ms^{-1}\)
The graph of density against temperature for water is correctly illustrated by
I
II
III
IV
Correct answer is C
No explanation has been provided for this answer.
I and II only
II and IV only
I,II and III
I, II and IV
Correct answer is C
The rate of cooling of liduid according to Newton's law of cooling depends on:
- Temperature of the liquid
- Temperature of the enclosure
- The area of the exposed surface
- The nature and extent of the surface of the containing vessel
The vertical distance covered
Acceleration due to gravity
The horizontal distance covered
The acceleration of the body
Correct answer is B
\(R_{max} = \frac{u^{2}}{g}\)
Hence, \(g = \frac{u^{2}}{R_{max}}\)
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