NEET (2024 Updated)-National Eligibility cum Entrance Test (Medical) Physics: Questions 723 - 726 of 5119
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Question 723
Question MCQ▾
An alternating voltage is connected to a 1 µF capacitor through an ac ammeter. The reading of the ammeter will be
Choices
Choice (4) | Response | |
---|---|---|
a. | 10 mA | |
b. | 20 mA | |
c. | 80 mA | |
d. | 40 mA |
Question 724
Question MCQ▾
Three identical metal balls each of radius r are placed touching each other on a horizontal surface such that an equilateral triangle is formed, when centers of three balls are joined. The center of the mass of system is located at
Choices
Choice (4) | Response | |
---|---|---|
a. | Centre of one of the balls | |
b. | Point of intersection of the medians | |
c. | Line joining centers of any two balls | |
d. | Horizontal surface |
Question 725
Question MCQ▾
The frequency of an alternating voltage is 50 cycles/sec and its amplitude is 120 V. Then the r. m. s value of voltage is
Choices
Choice (4) | Response | |
---|---|---|
a. | 84.8V | |
b. | 101.3V | |
c. | 56.5V | |
d. | 70.7V |
Question 726
Question MCQ▾
Four particles of masses m, 2m, 3m and 4m are arranged at the corners of a parallelogram with each side equal to a and one of the angle between two adjacent sides is 60°. The parallelogram lies in the x-y plane with mass-m at the origin and 4m on the x-axis. The center of mass of the arrangement will be located at
Choices
Choice (4) | Response | |
---|---|---|
a. | ||
b. | ||
c. | ||
d. |