NEET (2024 Updated)-National Eligibility cum Entrance Test (Medical) Physics: Questions 401 - 404 of 5119
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Question 401
Question MCQ▾
When the zero of the circular scale of a screw gauge coincides with the zero of the main scale before A and B come in contact then the instrument has which type of error?
Choices
Choice (4) | Response | |
---|---|---|
a. | Positive zero error | |
b. | Can՚t be said anything | |
c. | No zero error | |
d. | Negative zero error |
Question 402
Question MCQ▾
In a screw gauge, the zero of main scale coincides with fifth division of circular scale in figure (i) . The circular divisions of screw gauge are 50. It moves 0.5 mm on main scale in one rotation. The diameter of the ball in figure (ii)
Choices
Choice (4) | Response | |
---|---|---|
a. | 1.20mm | |
b. | 2.20mm | |
c. | 1.25mm | |
d. | 1.25rnm |
Question 403
Question MCQ▾
Identical point charges, each having + q charge, are fixed at each of the points x = x0 , x = 3x0 , x = 5x0 … infinite, on the x-axis and an identical point charges, each having -q charge, are fixed at each of the points x = 2x0 , x = 4x0 , x = 6x0 … infinite. Here x0 is a positive constant. Potential at the origin due to the above system of charges is ,
Choices
Choice (4) | Response | |
---|---|---|
a. | 0 | |
b. | ||
c. | ||
d. |
Question 404
Question MCQ▾
A ship is steaming towards east at a speed of 12 ms-1 . A woman runs across the deck at a speed of 5 ms-1 in the direction at right angles to the direction of motion of the ship i.e.. towards north. What is the velocity of the woman relative to sea?
Choices
Choice (4) | Response | |
---|---|---|
a. | 5 m/s | |
b. | 17 m/s | |
c. | 13 m/s | |
d. | 12 m/s |