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  #2  
26th September 2014, 03:19 PM
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Join Date: Apr 2013
Re: CBSE board 12th Science compartment Exam Question Papers

You are looking for CBSE board 12th Science Physics compartment Exam Question Paper here I am giving:

Carbon and silicon are known to have similar lattice structures. However, the four bonding electrons of carbon are
present in second orbit while those of silicon are present in its third orbit. How does this difference result in a
difference in their electrical conductivities?

We do not choose to transmit an audio signal by just directly converting it to an e.m. wave of the same frequency.
Give two reasons for the same. 2

18. Light of wavelength 550 nm. is incident as parallel beam on a slit of width 0.1mm. Find the angular width and the linear of the principal maxima in the resulting diffraction pattern on a screen kept at a distance of 1.1m from the slit. Which these widths would not change if the screen were moved to a distance of 2.2m from the slit?

Give reasons for the following : 3
(a) Astronomers prefer to use telescopes with large objective diameters to observe astronomical objects.
(b) Two identical but independent monochromatic sources of light cannot be coherent.
(c) The value of the Brewster angle for a transparent medium is different for lights of different colours.

What is a wavefront? Distinguish between a plane wavefront and a spherical wavefront. Explain with the help of a
diagram, the refraction of a plane wavefront at a plane surface using Huygen’s construction.

CBSE Science 12th Physics Compartment paper









  #3  
20th February 2016, 01:01 PM
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Re: CBSE board 12th Science compartment Exam Question Papers

Hello Buddy , I Need for previous year CBSE Board 12th Science Compartment Exam Question Papers ,Can you please Provide me Same for my help ?
  #4  
20th February 2016, 01:01 PM
Super Moderator
 
Join Date: May 2012
Re: CBSE board 12th Science compartment Exam Question Papers

Friend On your Asking here I ma Providing previous year CBSE Board 12th Science Compartment Exam Question Paper :


Name the economic value achievable when attempts are made to
increase resources in the country.

Define demand.

Give two examples of fixed costs.

Define market supply.

When is supply of a good said to be perfectly price inelastic ?

Why does the problem of ‘how to produce’ arise ? Explain.

A and B are complementary goods. Explain the effects of change in price
of A on demand for B.

Calculate marginal cost at each level of output :
Output (units) 1 2 3 4 5 6
Average variable cost (<) 12 11 10 9 9 10

When price of a commodity rises from < 5 to < 6 per unit, total revenue increases from < 1,000 to < 1,200. Calculate its price elasticity of supply.

Explain any two causes of ‘‘decrease’’ in supply of a commodity.
OR

Explain any two causes of a rightward shift of supply curve.

~OQ> aoIm Am¡a ~OQ> à{V~§Y Ho$ g_rH$aUm| Ho$ ~rM A§Va g_PmBE & 4
Explain the distinction between the equations of budget line and budget
constraint.

The price elasticity of demand of a good is (–) 0.5. At a price of < 20 per
unit its demand is 300 units. At what price will its demand increase by
10 percent ?

Define monopoly. State the main features of monopoly.

Explain the characteristics of indifference curves.
OR
Explain the conditions of consumer’s equilibrium using utility analysis.

Explain the changes that will take place in the market when market
price of a good is less than its equilibrium price. Use diagram.

The following question is for the Blind Candidates only in lieu of

Explain the changes that will take place in the market when market
price of a good is less than its equilibrium price. Use a schedule.

SECTION B

Give the meaning of depreciation.

Define domestic product.

What is meant by bank rate ?

What is a tax ?

Give two examples of revenue expenditure.

Distinguish between real and nominal gross domestic product.

Explain the ‘unit of account’ function of money.
OR
Explain the role of central bank as the ‘Bankers’ Bank’.

The value of marginal propensity to consume is double the value of
marginal propensity to save. Find the value of multiplier.


In an economy planned spending is greater than planned output.
Explain all the changes that will take place in the economy.

Distinguish between Balance of trade and Balance on current account of
the Balance of Payments account.

How does the central bank control credit creation in the economy
through ‘‘Bank Rate’’ ? Explain.

Government takes measures to restrict autonomous imports of gold.
Explain the economic values desired to be achieved from this.

Distinguish between :
(a) Direct tax and Indirect tax
(b) Primary deficit and Revenue deficit
  #5  
20th February 2016, 05:32 PM
Unregistered
Guest
 
Re: CBSE board 12th Science compartment Exam Question Papers

Hello sir, I want some previous year examination question paper of CBSE board 12th Science compartment? Please provide me if any one have CBSE board 12th Science compartment exam question paper?
  #6  
20th February 2016, 05:35 PM
Super Moderator
 
Join Date: May 2012
Re: CBSE board 12th Science compartment Exam Question Papers

CBSE Exam Pattern has changed and the new paper pattern provided below. This new pattern will contain more very short answer type questions.

12th board question based on subjects:

Accountancy
Business Studies
Chemistry
Physics
Biology
Mathematics





Here I’m attaching few question papers of CBSE board 12th Science compartment Exam Question Paper:


CBSE Grading:

A-1 Top 1/8th of the passed candidates
A-2 Next 1/8th of the passed candidates
B-1 Next 1/8th of the passed candidates
B-2 Next 1/8th of the passed candidates
C-1 Next 1/8th of the passed candidates
C-2 Next 1/8th of the passed candidates
D-1 Next 1/8th of the passed candidates
D-2 Next 1/8th of the passed candidates
E Failed candidates


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