1
JEE Main 2019 (Online) 10th April Evening Slot
MCQ (Single Correct Answer)
+4
-1
Change Language
The elastic limit of brass is 379 MPa. What should be the minimum diameter of a brass rod if it is to support a 400 N load without exceeding its elastic limit?
A
1.16 mm
B
1.36 mm
C
1.00 mm
D
0.90 mm
2
JEE Main 2019 (Online) 10th April Evening Slot
MCQ (Single Correct Answer)
+4
-1
Change Language
Two blocks A and B of masses mA = 1 kg and mB = 3 kg are kept on the table as shown in figure. The coefficient of friction between A and B is 0.2 and between B and the surface of the table is also 0.2. The maximum force F that can be applied on B horizontally, so that the block A does not slide over the block B is :
[Take g = 10 m/s2] JEE Main 2019 (Online) 10th April Evening Slot Physics - Laws of Motion Question 117 English
A
8 N
B
16 N
C
40 N
D
12 N
3
JEE Main 2019 (Online) 10th April Evening Slot
MCQ (Single Correct Answer)
+4
-1
Change Language
The correct figure that shows, schematically, the wave pattern produced by superposition of two waves of frequencies 9 Hz and 11 Hz, is :
A
JEE Main 2019 (Online) 10th April Evening Slot Physics - Waves Question 104 English Option 1
B
JEE Main 2019 (Online) 10th April Evening Slot Physics - Waves Question 104 English Option 2
C
JEE Main 2019 (Online) 10th April Evening Slot Physics - Waves Question 104 English Option 3
D
JEE Main 2019 (Online) 10th April Evening Slot Physics - Waves Question 104 English Option 4

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