Advertisements
Advertisements
प्रश्न
Solve the following problem:
Perform the following operation:
1.05 × 10−4 − 9.7 × 10−5
Advertisements
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.
1.05 × 10−4 − 9.7 × 10−5
= 10.5 × 10−5 − 9.7 × 10−5
= (10.5 − 9.7) × 10−5
= 0.80 × 10−5
= 8.0 × 10−6
APPEARS IN
संबंधित प्रश्न
Choose the correct option:
The number of significant figures in 1.50 × 104 g is __________
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?
Distinguish between accuracy and precision.
Why there is a need of rounding off figures during calculation?
Solve the following question:
Round off the following quantity to two significant figures:
25.55 mL
Solve the following question:
Round off the following quantity to three significant figures:
6.398 × 10-3 km
Solve the following question:
Round off the following quantity to three significant figures:
649.85
Solve the following question:
Round off the following quantity to three significant figures:
0.0041962 kg
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 problem:
Express the following quantity in exponential terms.
0.0003498
Solve the following problem:
Express the following quantity in exponential terms.
235.4678
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.
1.230 × 104
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:
3,672,199
Solve the following problem:
Write the following in exponential notation:
0.000098
Define: Least count
Define : Least count
Define: Least count
Define Least count.
Define Least count
Define Least count.
Define: Least count
