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WBJEE 2019 Revision Test 4
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Question 1
A nichrome wire 50 cm long and 1 mm2 cross-section carries a current of 4 A when connected to a 2 V battery. The resistivity of nichrome wire is
Question 2
Photons of electromagnetic radiation have energy 11 keV each. To which region of electromagnetic spectrum does it belong?
Question 3
Two moles of an ideal gas are undergone a cyclic process 1-2-3-1. If net heat exchange in the process is −300 J, then work done by the gas in the process 2-3 is
Question 4
A liquid of mass 1 kg is filled in a flask as shown in figure. The force exerted by the flask on the liquid is (g = 10 m/s2) [Neglect atmospheric pressure]
Question 5
A girl sees through a circular glass slab (refractive index 1.5) of thickness 20 mm and diameter 60 cm to the bottom of a swimming pool. Refractive index of water is 1.33. The bottom surface of the slab is in contact with the water surface. The depth of swimming pool is 6 m. The area of bottom of swimming pool that can be seen through the slab is approximately
Question 6
What is the concentration of citric acid that requires 32.27 mL of 0.0148 M NaOH to titrate 25.00 mL of its solution?
Question 7
Which of them is incorrect ?
Question 8
The deficiency of vitaminC causes:
Question 9
Ascorbic acid is a:
Question 10
An open vessel at 300 K is heated till 2/5th of the air in it is expelled. Assuming that the volume of the vessel remains constant, the temperature to which the vessel is heated, is
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May 24JEE & BITSAT
