Question

Plz solve this
Q1. Which of the following temperature is the same whether it is expressed in the Celsius or the Fahrenheit scale?
(a) - 100 (b) - 200 (c) - 300 (d) - 400
Q2. Which of the following sets contains only examples of matter?
(a) chalk, heat, ammonia (b) love, book, sand (c) almonds, cold drink, common salt (d) milk, hate, air
Q3 and Q4 are Assertion- Reasoning questions.
Choose the correct answer out of the given options.
(a) Both A and R are true and R is the correct explanation of A.
(b) Both A and R are true but R is not the correct explanation of A.
(c) A is true and R is false.
(d) A is false and R is true.
Q3.
Assertion(A): For any substance, during the change of state, the temperature remains constant.
Reason (R): Increase in temperature decreases the kinetic energy of the particles.
Q4.
Assertion (A): A punctured tyre becomes flat faster in summer than in winter. Reason (R): Rate of diffusion increases with increase in temperature. Q5. State True or False: Ice is more effective in cooling than ice cold water at the same temperature.

Answer 1

Answer:

°C = (°C * 9/5) + 32 °C - (°C * 9/5) = 32 - 4/5 * °C = 32 °C = - 32 * 5/4 °C = - 40 °F ... To find the temperature when both are equal, we use an old algebra trick and just set ºF = ºC and solve one of the equations. ... So the temperature when both the Celsius and Fahrenheit scales are the same is −40degrees.

Answer 2

Answer: 1st answer is 40 degree

2nd answer is c)

3rd and 4th answer is d)

5th answer is true