1
JEE Advanced 2016 Paper 1 Offline
Numerical
+3
-0
A metal is heated in a furnace where a sensor is kept above the metal surface to read the power radiated (P) by the metal. The sensor has a scale that displays $${\log _2}\left( {{P \over {{P_0}}}} \right)$$, where P0 is a constant. When the metal surface is at a temperature of 487oC, the sensor shows a value 1. Assume that the emissivity of the metallic surface remains constant. What is the value displayed by the sensor when the temperature of the metal surface is raised to 2767oC?
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2
JEE Advanced 2016 Paper 1 Offline
MCQ (Single Correct Answer)
+3
-1
A parallel beam of light is incident from air at an anglea on the side PQ of a right angled triangular prism of refractive index n = $$\sqrt 2 $$. Light undergoes total internal reflection in the prism at the face PR when a has a minimum value of 45°. The angle q of the prism is : JEE Advanced 2016 Paper 1 Offline Physics - Geometrical Optics Question 42 English
A
15o
B
22.5o
C
30o
D
45o
3
JEE Advanced 2016 Paper 1 Offline
MCQ (Single Correct Answer)
+3
-1
In a historical experiment to determine Planck's constant, a metal surface was irradiated with light of different wavelengths. The emitted photoelectron energies were measured by applying a stopping potential. The relevant data for the wavelength ($$\lambda $$) of incident light and the corresponding stopping potential (V0) are given below:

$$\lambda \left( {\mu m} \right)$$ V0(Volt)
0.3 2.0
0.4 1.0
0.5 0.4


Given that c = 3 $$ \times $$ 108 ms-1 and e = 1.6 $$ \times $$ 10-19 C, Planck's constant (in units of J-s) found from such an experiment is) :
A
6.0 $$ \times $$ 10-34
B
6.6 $$ \times $$ 10-34
C
6.4 $$ \times $$ 10-34
D
6.8 $$ \times $$ 10-34
4
JEE Advanced 2016 Paper 1 Offline
MCQ (Single Correct Answer)
+3
-1
A water cooler of storage capacity 120 litres can cool water at a constant rate of P watts. In a closed circulation system (as shown schematically in the figure), the water from the cooler is used to cool an external device that generates constantly 3 kW of heat (thermal load).
The temperature of water fed into the device cannot exceed 30°C and the entire stored 120 litres of water is initially cooled to 10°C. The entire system is thermally insulated. The minimum value of P (in watts) for which the device can be operated for 3 hours is : JEE Advanced 2016 Paper 1 Offline Physics - Heat and Thermodynamics Question 35 English

(Specific heat of water is 4.2 kJ kg−1 K−1 and the density of water is 1000 kg m−3)
A
1600
B
2067
C
2533
D
3933
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