Physics [NTSE Stage-1 (State-Level) Scholastic-Aptitude & Language Comprehension]: Questions 1 - 5 of 136
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Question 1
Question MCQ▾
There are two electric bulbs of 40 W and 100 W. Which one will be brighter when first connected in series and then in parallel?
Choices
| Choice (4) | Response | |
|---|---|---|
a. | 40 W in series and 100 W in parallel | |
b. | 40 W both in series and parallel will be uniform | |
c. | 100 W in series and 40 W in parallel | |
d. | 100 W both in series and parallel will be uniform | |
Question 4
Question Assertion-Reason▾
Assertion(Ꭺ)
The velocity of sound in air increases due to the presence of moisture in it.
Reason(Ꭱ)
The presence of moisture in air lowers the density of air.
Choices
| Choice (4) | Response | |
|---|---|---|
a. | Ꭺ is false but Ꭱ is true | |
b. | Both Ꭺ and Ꭱ are true but Ꭱ is NOT the correct explanation of Ꭺ | |
c. | Ꭺ is true but Ꭱ is false | |
d. | Both Ꭺ and Ꭱ are true and Ꭱ is the correct explanation of Ꭺ | |
Question 5
Question MCQ▾
A permanent magnet
Choices
| Choice (4) | Response | |
|---|---|---|
a. | attracts non-magnetic substances and repels magnetic substances | |
b. | attracts all substances | |
c. | attracts only magnetic substances | |
d. | attracts magnetic substances and repels all non-magnetic substances | |