MCQOPTIONS
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MCQOPTIONS
This section includes 3 Mcqs, each offering curated multiple-choice questions to sharpen your Physics knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
A liquid cools from 65°C to 55°C in 5 mins. If the surrounding temperature is 35℃, calculate the time taken for temperature to fall from 45°C to 35°C. |
| A. | 25sec |
| B. | 25min |
| C. | 30min |
| D. | 30sec |
| Answer» C. 30min | |
| 2. |
A body has a temperature of 200°C and is kept in a room containing air at 25°C. We can use Newton’s law of cooling. True or False? |
| A. | True |
| B. | False |
| Answer» C. | |
| 3. |
The rate of cooling of water increases with fall in temperature. True or False? |
| A. | True |
| B. | False |
| Answer» C. | |