Advertisements
Advertisements
प्रश्न
Solve the following problem:
Perform the following operation:
4.11 × 10−3 + 8.1 ×10−4
उत्तर
To perform an addition/subtraction operation, first, the numbers are written in such a way that they have the same exponent. The coefficients are then added/subtracted.
4.11 × 10−3 + 8.1 ×10−4
= 41.1 × 10−4 + 8.1 × 10−4
= (41.1 + 8.1) × 10−4
= 49.2 × 10−4
= 4.92 × 10−3
APPEARS IN
संबंधित प्रश्न
Choose the correct option:
In Avogadro’s constant 6.022 × 1023 mol-1, the number of significant figures is ________
What do you mean by significant figures?
State the rules for deciding significant figures.
Distinguish between accuracy and precision.
Why there is a need of rounding off figures during calculation?
Why is accurate measurement crucial in science?
Solve the following question:
Round off the following quantity to two significant figures:
0.00254 m
Solve the following question:
Round off the following quantity to two significant figures:
1.491 × 105 mg
Solve the following question:
Round off the following quantity to two significant figures:
199 g
Solve the following question:
Round off the following quantity to three significant figures:
42,150
Express the following sum to the appropriate number of significant figures:
2.3 × 103 mL + 4.22 × 104 mL + 9.04 × 103 mL + 8.71 × 105 mL
Solve the following question:
Express the following sum to the appropriate number of significant figures:
319.5 g − 20460 g − 0.0639 g − 45.642 g − 4.173 g
Solve the following problem:
Express the following quantity in exponential terms.
235.4678
Solve the following problem:
Express the following quantity in exponential terms.
70000.0
Solve the following problem:
Express the following quantity in exponential terms.
1569.00
Solve the following problem:
Give the number of significant figures for the following.
0.002030
Solve the following problem:
Give the number of significant figures for the following.
1.89 × 10-4
Solve the following problem:
Express the given quantity with or without exponents as the case may be.
0.002030
Solve the following problem:
Write the following in exponential notation:
0.000098
Solve the following problem:
Perform the following operation:
1.05 × 10−4 − 9.7 × 10−5
Solve the following problem:
Perform the following operation:
2.12 × 106 − 3.5 × 105
Define: Least count
Define: Least count
Define Least count.
Define Least count
Define: Least count