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New answer posted

11 months ago

Class 12th Physics

A solid metal sphere of radius R having charge q is enclosed inside the concentric spherical shell of inner radius a and outer radius b as shown in figure. The approximate variation electric field E →  as a function of distance r from centre O is given by:
0 Follower 10 Views

V
Vishal Baghel

Contributor-Level 10

Assuming shell to be conducting

For  0 ≤ r < R q i n = 0 ,

E = 0

R ≤ r < a q i n = Q       

E = k Q r 2            

a ≤ r < b q i n = Q − Q = 0          

E = 0

r ≥ b q i n = Q

E = k Q r 2

New answer posted

11 months ago

Class 12th English

Shrashti has just finished her diploma in business administration recently. She wants to join her father's business and told the same to her father. Knowing that her father gave some information to her and asked to make a presentation on the information, if she presents it well then he will get her inducted into his business. The information is as follows:

Her father has spinning yarn in Udupi in which there are 20000 spindles each which produce 1500 metres of satin cloth every year. His father sells the cloth to garments manufacturers at Rs. 20 per metre. Also, he exports 30% of his total production of to makers of imported clothes an

...more
0 Follower 1 View

P
Payal Gupta

Contributor-Level 10

Total satin cloth production = 20000 * 1500 = 30,000,000 metres

If only 80% production is then satin cloth = 24,000,000 metres

Out of this 30% production is exported = 7,200,000 metres.

So, total revenue will be now = Rs. 432,000,000

The revenue with full production is Rs. 540,000,000

Hence, there is a decrease of 20%.

Short cut method: If production decreases by x% then be it domestic or export the quantity will decrease by 20% as the both are a part of total production. And as price is constant so revenue change will be same as the production change.

New answer posted

11 months ago

Class 12th English

Shrashti has just finished her diploma in business administration recently. She wants to join her father's business and told the same to her father. Knowing that her father gave some information to her and asked to make a presentation on the information, if she presents it well then he will get her inducted into his business. The information is as follows:

Her father has spinning yarn in Udupi in which there are 20000 spindles each which produce 1500 metres of satin cloth every year. His father sells the cloth to garments manufacturers at Rs. 20 per metre. Also, he exports 30% of his total production of to makers of imported clothes an

...more
0 Follower 1 View

P
Payal Gupta

Contributor-Level 10

Profit earned at present = Rs. 65,000,000

New cost of wool = Rs. 120 per pound. So the total cost is now Rs. 180,000,000. As the revenue is same hence the new profit will be Rs. 20,000,000. So there is decrease of Rs. 45,000,000 which is a 70% decrease approx.

New answer posted

11 months ago

Class 12th English

Shrashti has just finished her diploma in business administration recently. She wants to join her father's business and told the same to her father. Knowing that her father gave some information to her and asked to make a presentation on the information, if she presents it well then he will get her inducted into his business. The information is as follows:

Her father has spinning yarn in Udupi in which there are 20000 spindles each which produce 1500 metres of satin cloth every year. His father sells the cloth to garments manufacturers at Rs. 20 per metre. Also, he exports 30% of his total production of to makers of imported clothes an

...more
0 Follower 1 View

P
Payal Gupta

Contributor-Level 10

As cost is not known, hence profit cannot be calculated.

New answer posted

11 months ago

Class 12th English

Directions for question: Answer the questions on the basis of the information given below.

Shrashti has just finished her diploma in business administration recently. She wants to join her father's business and told the same to her father. Knowing that her father gave some information to her and asked to make a presentation on the information, if she presents it well then he will get her inducted into his business. The information is as follows:

Her father has spinning yarn in Udupi in which there are 20000 spindles each which produce 1500 metres of satin cloth every year. His father sells the cloth to garments manufacturers at Rs. 20

...more
0 Follower 7 Views

P
Payal Gupta

Contributor-Level 10

Udupi (Spinning yarn)

Number of spindles = 20000

Production per spindle per year = 1500 metres

Total satin cloth production = 20000 * 1500 = 30,000,000 metres

Out of the total 30% is exported i.e. 9,000,000 metres is exported and rest 21,000,000 is sold domestically. Also the selling price in domestic market is Rs. 20 and in export market its 200% more than the domestic market i.e. Rs. 60 in the export market. The table below sums us the scenario.

 

Market

Cloth Sold

(metres)

Selling Price

(Rs.)

Revenue

(Rs.)

Domestic

21000000

20

420,000,000

Export

9000000

60

540,000,000

Total

30000000

 

960,000,000

 

Latur (Wool garments)

Quantity of wool procured = 1500000 pounds

Cost of wool = Rs. 90 per pound

Total cost of wool = Rs. 135,000,000

Wool used for one garment = 1.5 pounds

Number of woolen

...more

New answer posted

11 months ago

Class 12th Chemistry

In the above reaction product B is:

AqIn the above reaction product B is

 
0 Follower 29 Views

A
alok kumar singh

Contributor-Level 10

Kindly go throiugh the solution

 

New answer posted

11 months ago

Class 12th Chemistry

Match List I with List II

List I

Pollutant

List II

Disease / sickness

A.

Benzenesulphonyl chloride

I.

Test for primary aminies

B.

Hoffmann bromamide reaction

II.

Anti saytzeff

C.

Carbylamine reaction

III.

Hinsberg reagent

D.

Hoffman orientation

IV.

Known reaction of isocyanates

Choose the correct answer from the options given below ;
0 Follower 4 Views

A
alok kumar singh

Contributor-Level 10

Intermediate : R – N = C = O (Isocyanate)

(C) Carbylamine reaction ->Test for primary amine.

  R − N H 2     o r     A r − N H 2 + C H C l 3 + 3 K O H → R − N C     o r     A r − N C + 3 K C l + 3 H 2 O                    

(D) Hoffmann orientation -> Anti saytzeff (Formation of less substituted alkene as major product)

 

New answer posted

11 months ago

Class 12th Chemistry

In carius method of estimation of halogen, 0.45g of an organic compound gave 0.36g of AgBr. Find out the percentage of bromine in the compound.

 (Molar masses: AgBr = 188 g mol-1, Br = 80 g mol-)
0 Follower 5 Views

A
alok kumar singh

Contributor-Level 10

Mass of organic compound = 0.45 gm

Mass of AgBr obtained = 0.36 gm

∴ M o l e s     o f     A g B r = 0 . 3 6 1 8 8

∴ M a s s     o f     B r o m i n e = 0 . 3 6 1 8 8 * 8 0 = 0 . 1 5 3 2 g m

∴ % B r     i n     c o m p o u n d = 0 . 1 5 3 2 0 . 4 5 * 1 0 0 = 3 4 . 0 4 %                

 

New answer posted

11 months ago

Class 12th Differential Equations

If the solution curve y = y(x) of the differential equation y2dx + (x2 – xy + y2)dy = 0, which passes through the point (1, 1) and intersects the line y = 3 x  at the point ( α , 3 α ) ,  then value of l o g e ( 3 α )  is equal to:
0 Follower 2 Views

V
Vishal Baghel

Contributor-Level 10

y 2 d x + ( x 2 − x y + y 2 ) d y = 0

d x d y + x 2 − x y + y 2 y 2 = 0 ⇒ d x d y + ( x y ) 2 − ( x y ) + 1 = 0

Put x = vy ⇒ v + y d v d y + v 2 − v + 1 = 0

⇒ y d v d y + v 2 + 1 = 0

⇒ π 6 + l n | y | = π 4

l n | y | = π 1 2

New answer posted

11 months ago

Class 12th Chemistry

Match List I with List II

Choose the correct answer from the options given below:

 
0 Follower 1 View

A
alok kumar singh

Contributor-Level 10

Kindly go through the solution
 

 

 

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