Question

Consider the following experimental setup.
Pin 2 fell off first, while pin 1 did not fall even after 5 min of heating. Guess the nature of the material of the blue rod and the yellow rod. Which of them is a conductor, and which is an insulator? Also, given one practical use each for a conductor and an insulator.
2. The temperature of the coldest region in a freezer was found to be -23°C. Express this temperature in terms of °F and in K.
3. List out 4 precautions that must be followed while using a laboratory thermometer.
V. Numerical Problems.
1. Convert from Fahrenheit to Celsius scale.
(a) 40°F (b) 52°F
2. Convert from Celsius to Fahrenheit scale.
(a) 100°C (b) 12°C
3. Convert from Celsius to Kelvin.
(a) 36°C (b) 10°C
4. Convert from Kelvin to Celsius.
(a) 341 K (b) 278K.

Answer 1

Explanation:

sorry for i do not know the answer

Answer 2

Answer:

Explanation:

Numerical Problems.

1. Convert from Fahrenheit to Celsius scale

T(°C) = (40°F - 32) × 5/9 = 4.4 °C

T(°C) = (52°F - 32) × 5/9 = 11.1 °C

2. Convert from Celsius to Fahrenheit scale

T(°F) = 100°C × 9/5 + 32 = 212 °F

T(°F) = 12°C × 9/5 + 32 = 53.6 °F

Convert from Celsius to Kelvin.

T(K) = 36°C + 273.15 = 309.15 K

T(K) = 10°C + 273.15 = 283.15 K

Convert from Kelvin to Celsius.

T(°C) = 341K - 273.15 = 67.85 °C

T(°C) = 278K - 273.15 = 4.85 °C