During jogging body temperature rises. Why?
A) Due to over sweating
B) Temperature increases due to over exercise
C) To regain strength with CO2
D) Over consumption and loss of glucose in the body
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The range of temperature in a clinical thermometer, which measures the temperature of the human body, is
Correct answer is (B) 34°C to 42°C
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A body projected vertically upwards, reaches a height of 180 m. Find out `[g=10ms^(-2)]` (i) intial velocity of body (ii) time taken by body to reach
Correct Answer - (i)`60m//s` (ii) 6 sec (iii) 12 sec (iv )160 m (v)`-20m//s` (vi) 2 sec, 10 sec (vii) 6 sec
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The Brahmaputra rises in this glacier A) Satopanth glacier
D) Chemayungdung glacier
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A force of 6 N acts on a body of mass 1 kg initially at rest and during this time, the body attains a velocity of 30 m/s.
Correct option is:(D) 5 second \(F = \frac{dp}{dt}\) \(6 = \frac{mv}{dt}\) \(6 = \frac{1 \times 30}{dt}\) \(\Delta t = \frac{30}{6}\) \(\Delta t = 5 sec\)
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A force of 6 N acts on a body of mass 1 kg initially at rest and during this time, the body attains a velocity of 30 m/s.
2 Answers
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In paper chromatography, the mobile phase rises up the chromatography paper due to ………………
Option : (B) capillary action
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i. Heat transfer takes place between the body and the surrounding medium until the body and the surrounding medium are at the same temperature.
1. True. 2. False. Whenever two bodies at different temperature are in contact, there is a transfer of heat.
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If the temperature of 4 kg mass of a material of specific heat capacity 300 J/ kg °C rises from 20 °C to 30 °C. Find the heat received.
m = 4 kg, s = 300 J/kg °C ∆T = 30 – 20 = 10 °C To find: Heat received (Q) Formula: Q = ms∆T Calculation: From formula, Q = 4 × 300 ×...
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…………….. flows from a body at higher temperature to a body at lower temperature.
Correct option is B) Heat
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The final temperature of a mixture of 100g of water at 30°C temperature and 100g of water at 60°C temperature is ………………………
Correct option is A) 45° C
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