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Rohan
Subject: Physics
, asked on 16/5/18
A dimensionally consistent relation for the volume V of a liquid of coefficient of viscosity 'eta' flowing per second, through a tube of radius r and length l having pressure difference P across its ends are ? Experts, please show me how the relation is coming through dimensional method.
Answer
1
Ranak Sharma
Subject: Physics
, asked on 15/5/18
Question no 5.
5.
The air bubble formed by explosion under water performs oscillations with time period (T) which depends upon the static pressure (P), water density (d) and the energy of explosion (E). Obtain formula for the period T by - Dimensional analysis .
Answer
1
Ranak Sharma
Subject: Physics
, asked on 15/5/18
Solve this :
Q.4: If the unit of force, energy and velocity are 10N, 100J and 5
$m{s}^{-1}$
respectively, then obtain the units of length, mass and time.
Answer
2
Ranak Sharma
Subject: Physics
, asked on 15/5/18
1Q.When a stone falls freely , the height it falls in a time t is given by the equation h = ut +
$\xbd$
gt
^{2}
where u is the velocity of the stone at the time of drop. Find the dimension and units of u and g.
Answer
1
Ranak Sharma
Subject: Physics
, asked on 15/5/18
Plz answer
Q.2. Find out the units and dimensions of the constants a and b in the Vander Waals' equation
$\left(P+\frac{a}{{V}^{2}}\right)\left(V-b\right)=RT$
Answer
1
अर्कज
Subject: Physics
, asked on 15/5/18
Solve this:
Question No. 6
If the base is doubled and the parallax angle is halved, the ratio of the original to the new distance is
A. 1 : 2
B. 2 : 1
C. 1 : 4
D. 4 : 1
Answer
1
अर्कज
Subject: Physics
, asked on 15/5/18
Solve this:
Question No. 8
The parallactic angle subtended by a distant star is 0.86"on the earth's orbital diameter (1.5
$\times {10}^{11}$
m). The distance of the star from the Earth is
A. 37.9 light years
B. 3.79 light years
C. 4.78 light years
D. 5.01 light years
Answer
1
अर्कज
Subject: Physics
, asked on 15/5/18
Solve this:
Question No. 9
A vernier caliper has 1 mm marks on the main scale. It has 20 equal divisions on the vernier scale (VSD) which match with 18 main scale divisions (MSD). For this vernier caliper, the least count (L.C.) is
A. 0.1 mm
B. 0.01 mm
C. 0.2 mm
D. 0.02 mm
Answer
1
अर्कज
Subject: Physics
, asked on 15/5/18
Explain:
Answer
1
अर्कज
Subject: Physics
, asked on 15/5/18
Solve this:
Two vectors having equal magnitudes A make an angle
$\theta $
with each other. Find the magnitude and direction of resultant.
Answer
2
अर्कज
Subject: Physics
, asked on 15/5/18
Explain:
Answer
1
अर्कज
Subject: Physics
, asked on 15/5/18
Explain:
Answer
1
अर्कज
Subject: Physics
, asked on 15/5/18
Explain:
Answer
1
अर्कज ..
Subject: Physics
, asked on 14/5/18
A vernier caliper has 1 mm marks on the math scale. It has 20 equal divisions on the vernier scale (VSD) which match with 18 main scale divisions (MSD). What is the least count (L.C) for this vernier caliper?
(A) 0.1 mm
(B) 0.01 mm
(C) 0.2 mm
(D) 0.02 mm
Answer
2
अर्कज ..
Subject: Physics
, asked on 14/5/18
Question No. 4
The main scale of a Vernier calliper has 20 divisions in 1 cm. If 18 main scale divisions coincide with 20 Vernier scale divisions, then which of the following statements is correct?
A. The pitch of the Vernier calliper is 0.5 cm.
B. The pitch of the Vernier calliper is 0.025 cm.
C. The least count of the Vernier calliper is 0.025 cm.
D. The least count of the Vernier calliper is 0.005 cm.
Answer
1
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What are you looking for?

5.Q.4: If the unit of force, energy and velocity are 10N, 100J and 5$m{s}^{-1}$ respectively, then obtain the units of length, mass and time.

^{2}where u is the velocity of the stone at the time of drop. Find the dimension and units of u and g.Q.2. Find out the units and dimensions of the constants a and b in the Vander Waals' equation $\left(P+\frac{a}{{V}^{2}}\right)\left(V-b\right)=RT$

Question No. 6

If the base is doubled and the parallax angle is halved, the ratio of the original to the new distance is

A. 1 : 2

B. 2 : 1

C. 1 : 4

D. 4 : 1

Question No. 8

The parallactic angle subtended by a distant star is 0.86"on the earth's orbital diameter (1.5$\times {10}^{11}$ m). The distance of the star from the Earth is

A. 37.9 light years

B. 3.79 light years

C. 4.78 light years

D. 5.01 light years

Question No. 9

A vernier caliper has 1 mm marks on the main scale. It has 20 equal divisions on the vernier scale (VSD) which match with 18 main scale divisions (MSD). For this vernier caliper, the least count (L.C.) is

A. 0.1 mm

B. 0.01 mm

C. 0.2 mm

D. 0.02 mm

Two vectors having equal magnitudes A make an angle $\theta $ with each other. Find the magnitude and direction of resultant.

(A) 0.1 mm

(B) 0.01 mm

(C) 0.2 mm

(D) 0.02 mm

The main scale of a Vernier calliper has 20 divisions in 1 cm. If 18 main scale divisions coincide with 20 Vernier scale divisions, then which of the following statements is correct?

A. The pitch of the Vernier calliper is 0.5 cm.

B. The pitch of the Vernier calliper is 0.025 cm.

C. The least count of the Vernier calliper is 0.025 cm.

D. The least count of the Vernier calliper is 0.005 cm.