1
JEE Main 2019 (Online) 12th January Evening Slot
MCQ (Single Correct Answer)
+4
-1
Change Language
Formation of real image using a biconvex lens is shown below :

JEE Main 2019 (Online) 12th January Evening Slot Physics - Geometrical Optics Question 188 English

If the whole set up is immersed in water without disturbing the object and the screen positions, what will one observe on the screen ?
A
Image disappears
B
Magnified image
C
Erect real image
D
No change
2
JEE Main 2019 (Online) 12th January Evening Slot
MCQ (Single Correct Answer)
+4
-1
Change Language
In the above circuit, C = $${{\sqrt 3 } \over 2}$$$$\mu $$F, R2 = 20 $$\Omega $$, L = $${{\sqrt 3 } \over {10}}$$ H and R1 = 10 $$\Omega $$. Current in L-R1 path is I1 and in C-R2 path it is I2 . The voltage of A.C. source is given by, V = 200 $${\sqrt 2 }$$ sin (100 t) volts . The phase difference between I1 and I2 is :

JEE Main 2019 (Online) 12th January Evening Slot Physics - Alternating Current Question 146 English
A
150o
B
90o
C
30o
D
0o
3
JEE Main 2019 (Online) 12th January Evening Slot
MCQ (Single Correct Answer)
+4
-1
Change Language
A soap bubble, blown by a mechanical pump at the mouth of a tube, increases in volume, with time, at a constant rate. The graph that correctly depicts the time dependence of pressure inside the bubble is given by :
A
JEE Main 2019 (Online) 12th January Evening Slot Physics - Properties of Matter Question 237 English Option 1
B
JEE Main 2019 (Online) 12th January Evening Slot Physics - Properties of Matter Question 237 English Option 2
C
JEE Main 2019 (Online) 12th January Evening Slot Physics - Properties of Matter Question 237 English Option 3
D
JEE Main 2019 (Online) 12th January Evening Slot Physics - Properties of Matter Question 237 English Option 4
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