Advertisements
Advertisements
प्रश्न
Scientists use the Kelvin scale (K) as an alternative temperature scale to degrees Celsius (°C) by the relation T°C = (T + 273)K. Convert the following to Kelvin:
−273°C
उत्तर
−273°C = (−273 + 273)K
= 0K
APPEARS IN
संबंधित प्रश्न
An atom can contain protons which have a positive charge (+) and electrons which have a negative charge (−). When an electron and a proton pair up, they become neutral (0) and cancel the charge at. Now determine the net charge:
5 electrons and 3 protons →
Scientists use the Kelvin scale (K) as an alternative temperature scale to degrees Celsius (°C) by the relation T°C = (T + 273)K. Convert the following to Kelvin:
−275°C
An atom can contain protons which have a positive charge (+) and electrons which have a negative charge (−). When an electron and a proton pair up, they become neutral (0) and cancel the charge at. Now determine the net charge:
6 protons and 6 electrons →
Scientists use the Kelvin scale (K) as an alternative temperature scale to degrees Celsius (°C) by the relation T°C = (T + 273)K. Convert the following to Kelvin:
−400°C
A poet Tamizh Nambi lost 35 pages of his ‘lyrics’ when his file had got wet in the rain. Use integers, to determine the following:
If Tamizh Nambi is paid ₹ 250 for each page produced, how much money did he lose?
A poet Tamizh Nambi lost 35 pages of his ‘lyrics’ when his file had got wet in the rain. Use integers, to determine the following:
If Kavimaan helps Tamizh Nambi and they are able to produce 7 pages per day, how many days will it take to recreate the work lost?
Kamatchi, a fruit vendor sells 30 apples and 50 pomegranates. If she makes a profit of ₹ 8 per apple and loss ₹ 5 per pomegranate. What will be her overall profit or loss?
During a drought, the water level in a dam fell 3 inches per week for 6 consecutive weeks. What was the change in the water level in the dam at the end of this period?
Match the statements in Column A and Column B
| S.No. | Column A | Column B |
| 1. | For any two integers 72 and 108, 72 + 108 is also an integer. | (a) Distributive property of multiplication over addition. |
| 2. | For any three integers 68, 25 and 99 68 × (25 + 99) = (68 × 25) + (68 × 99) |
(b) Multiplicative identity |
| 3. | 0 + (−138) = (−138) = (−138) + 0 | (c) Commutative property under |
| 4. | For any two integers (−5) and 10 (−5) × 10 = 10 × (−5) |
(d) Closed under addition. |
| 5. | 1 × (−1098) = (–1098) = (–1098) × 1 | (e) Additive identity. |
A dog is climbing down into a well to drink water. In each jump, it goes down 4 steps. The water level is in 20th step. How many jumps does the dog take to reach the water level?
