70 to 307
6. Draw a number grid of 18 x 6 showing numbers from 1 to 108. Follow the Sieve of
Eratosthenes method to mark prime numbers in it.
Observe the pattern formed by prime numbers and write your observation in your
own words,
(Note: Draw 18 x 6 number grid on a square paper having 18 rows and 6 columns having
numbers from 1 to 6 in the first row.)
Answers
Answer:
If A and B are two sets , then A - (A
- B) is equal to : *
O (A) B
O (B) AUB
O (C) ACB
O (D) B - AANSWER
A & B are two sets
AᴜB = (A-B) + (A∩B) + (B-A)
solutionWhich of the following pairs has same dimensions?
1) Angular momentum of Plank's constant
2) Dipole moment and electric field
3) Both 1 and 2
4) None of theseanswr
search
What would you like to ask?
11th
Physics
Units and Measurement
Dimensions and Dimensional Analysis
In which of the following p...
PHYSICS
avatar
Asked on October 15, 2019 by
Varaganti Amarwanshi
In which of the following pairs, the two physical quantities have different dimensions?
EASY
Share
Study later
VIDEO EXPLANATION
ANSWER
(A) : Using L=mvr=
2π
nh
Thus the angular momentum (L) has the same dimensions as that of Planck's constant (h)
(B) : Impulse I=ΔP
Thus impulse (I) has the same dimensions as that of linear momentum (P)
(C) : Using τ=Iα ⟹ I=
α
τ
where angular acceleration is not dimensionless.
Thus the dimensions of moment of inertia are different from those of moment of force
( OR torque)
(D) : Dimension of energy E=[ML
2
T
−2
]
Dimension of torque τ=Fr=[ML
2
T
−2
]
Hence, torqua and energy have same dimensions.ANSWER
(A) : Using L=mvr=
2π
nh
Thus the angular momentum (L) has the same dimensions as that of Planck's constant (h)
(B) : Impulse I=ΔP
Thus impulse (I) has the same dimensions as that of linear momentum (P)
(C) : Using τ=Iα ⟹ I=
α
τ
where angular acceleration is not dimensionless.
Thus the dimensions of moment of inertia are different from those of moment of force
( OR torque)
(D) : Dimension of energy E=[ML
2
T
−2
]
Dimension of