1
JEE Main 2020 (Online) 9th January Morning Slot
MCQ (Single Correct Answer)
+4
-1
Change Language
Which of the following is an equivalent cyclic process corresponding to the thermodynamic cyclic given in the figure ? where, 1 $$ \to $$ 2 is adiabatic.
(Graphs are schematic and are not to scale) JEE Main 2020 (Online) 9th January Morning Slot Physics - Heat and Thermodynamics Question 308 English
A
JEE Main 2020 (Online) 9th January Morning Slot Physics - Heat and Thermodynamics Question 308 English Option 1
B
JEE Main 2020 (Online) 9th January Morning Slot Physics - Heat and Thermodynamics Question 308 English Option 2
C
JEE Main 2020 (Online) 9th January Morning Slot Physics - Heat and Thermodynamics Question 308 English Option 3
D
JEE Main 2020 (Online) 9th January Morning Slot Physics - Heat and Thermodynamics Question 308 English Option 4
2
JEE Main 2020 (Online) 9th January Morning Slot
MCQ (Single Correct Answer)
+4
-1
Change Language
In the given circuit diagram, a wire is joining points B and D. The current in this wire is : JEE Main 2020 (Online) 9th January Morning Slot Physics - Current Electricity Question 232 English
A
4 A
B
2 A
C
zero
D
0.4 A
3
JEE Main 2020 (Online) 9th January Morning Slot
MCQ (Single Correct Answer)
+4
-1
Change Language
Radiation, with wavelength 6561 $$\mathop A\limits^o $$ falls on a metal surface to produce photoelectrons. The electrons are made to enter a uniform magnetic field of 3 × 10–4 T. If the radius of the largest circular path followed by the electrons is 10 mm, the work function of the metal is close to :
A
1.8eV
B
0.8eV
C
1.1eV
D
1.6eV
4
JEE Main 2020 (Online) 9th January Morning Slot
MCQ (Single Correct Answer)
+4
-1
Change Language
If the screw on a screw-gauge is given six rotations, it moves by 3 mm on the main scale. If there are 50 divisions on the circular scale the least count of the screw gauge is :
A
0.001 mm
B
0.01 cm
C
0.02 mm
D
0.001 cm
JEE Main Papers
2023
2021
EXAM MAP