1
JEE Main 2019 (Online) 12th April Morning Slot
MCQ (Single Correct Answer)
+4
-1
A concave mirror has radius of curvature of 40 cm. It is at the bottom of a glass that has water filled up to 5
cm (see figure). If a small particle is floating on the surface of water, its image as seen, from directly above
the glass, is at a distance d from the surface of water. The value of d is dose to: (Refractive index of water =
1.33)
![JEE Main 2019 (Online) 12th April Morning Slot Physics - Geometrical Optics Question 137 English](https://imagex.cdn.examgoal.net/3rsa0w2w9jx3on8ko/f002fe1e-5084-4d01-8cc5-76dc2cbc53dd/e9764a80-92cf-11e9-86c1-73f7f991b766/file-3rsa0w2w9jx3on8kp.png)
![JEE Main 2019 (Online) 12th April Morning Slot Physics - Geometrical Optics Question 137 English](https://imagex.cdn.examgoal.net/3rsa0w2w9jx3on8ko/f002fe1e-5084-4d01-8cc5-76dc2cbc53dd/e9764a80-92cf-11e9-86c1-73f7f991b766/file-3rsa0w2w9jx3on8kp.png)
2
JEE Main 2019 (Online) 12th April Morning Slot
MCQ (Single Correct Answer)
+4
-1
Two moles of helium gas is mixed with three moles of hydrogen molecules (taken to be rigid). What is the
molar specific heat of mixture at constant volume ? (R = 8.3 J/mol K)
3
JEE Main 2019 (Online) 12th April Morning Slot
MCQ (Single Correct Answer)
+4
-1
Which of the following combinations has the dimension of electrical resistance ($$ \in $$0 is the permittivity of
vacuum and $$\mu $$0 is the permeability of vacuum)?
4
JEE Main 2019 (Online) 12th April Morning Slot
MCQ (Single Correct Answer)
+4
-1
When M1 gram of ice at –10oC (specific heat = 0.5 cal g–1
oC–1
) is added to M2 gram of water at 50C, finally
no ice is left and the water is at 0°C. The value of latent heat of ice, in cal g–1
is :
Paper analysis
Total Questions
Chemistry
22
Mathematics
22
Physics
27
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