CBSE Class 10 - Geography - Resource and Development (Q and A) (#cbsenotes)(#eduvictors)

Resources and development (Q & A)

Q1: What is Land Degradation? State the human activities which are responsible for land degradation in India?

Answer: When the land becomes unfit for cultivation, it is called land degradation. Activities responsible for land degradation in India are:
⒈ Activities mining
⒉ Overgrazing
⒊ Over irrigation
⒋ Mineral processing
⒌ Industrial effluents

⒈ Activities mining
Surface mining leads to degradation of land. Mining sites are often abandoned after excavation work is complete, leaving deep scars and traces of overburdening. For example deforestation in states like Chhattisgarh Madhya Pradesh and Odisha is due to mining.

CBSE Class 12 - Business Studies - Instruments of Money Market (#cbsenotes)(#eduvictors)

Instruments of Money Market

The money market is the arena in which financial institutions provide a broad range of borrowers and investors the opportunity to buy and sell various forms of short-term securities.

INSTRUMENTS OF MONEY MARKET

1. Treasury Bill (T-bills):
It is basically an instrument of short-term borrowing by the Government of India maturing in less than one year. They are also known as Zero coupon bonds.

2. Commercial Paper: 
It is a short-term unsecured promissory note, negotiable and transferable by endorsement and delivery with a fixed maturity period. It is issued by large and creditworthy companies to raise short-term funds at lower rates of interest than market rates. It usually has a maturity period of 15 days to one year.

CBSE Class 9 - Chemistry - Matter in Our Surroundings (MCQs) (#cbsenotes)(#eduvictors)

Matter in Our Surroundings
(MCQs)

1. ______ is a physical quantity which expresses the amount of matter in a body.

(A) Mass
(B) Density
(C) Volume
(D) Temperature


2. The space inside a container that is occupied by matter is its ______.

(A) density
(B) mass
(C) volume
(D) shape


3. ______ is the ratio of mass of a substance to its volume.

(A) Viscosity
(B) Fluidity
(C) Density
(D) Elasticity

CBSE Class 12 - Physics - Alternative Current - Important Theory Questions (#cbsenotes)(#eduvictors)

Alternative Current

(Important Theory Questions)

1. Describe the principle construction and working of an AC generator. Draw neat labeled diagram

2. Define mean value of AC(over a half cycle) and derive an expression for it.

3. Define RMS value of AC and derive an expression for it. ()

4. Show that the average value of AC over a complete cycle is zero.

5. Show that the current and voltage are in phase in an ac circuit containing resistance only.

Vocabulary - 10 The Most Confusing Words (#cbsenotes)(#eduvictors)

Vocabulary - 10 The Most Confusing Words

① Ability, Capacity

Ability refers to the power to do something.
e.g. Citrus foods are said to have the ability to prevent colds.

Capacity refers to the ability to hold or contain something.
e,g. This hall has a capacity of 5,000 seats.


② About, Approximately, Around

About refers to a rough estimate. Commonly used in face to face speech.
e.g.  We waited about 30 minutes for the bus.

Approximately refers to near accuracy.
e.g.  This school enrolls approximately 4,000 students.

Around refers to a physical proximity or surrounding.
e.g.  We’ll look for you around the front of the building.

CBSE Class 8 - Chapter 3: Understanding Quadrilaterals (MCQs) (#cbsenotes)(#eduvictors)

Understanding Quadrilaterals (MCQs)

1. A simple closed curve made up of only _____________ is called a polygon .

(a) curves
(b) line segments
(c) lines
(d) closed curves


2. A polygon with minimum number of sides is

(a) Pentagon
(b) Square
(c) triangle
(d) angle


3. Polygons that have no portions of their diagonals in their exteriors are called

(a) Squares
(b) triangles
(c) convex
(d) concave


4. Polygons that have any portions of their diagonals in their exteriors are called

(a) Squares
(b) triangles
(c) convex
(d) concave

CBSE Class 12 - Physics - Electromagnetic Induction (EMI) - Important Theory Questions (#cbsenotes)(#eduvictors)

Electromagnetic Induction (EMI)

(Theoretical Questions Assignment)

1. State and Explain Faraday's laws of electromagnetic induction.()

2. State Lenz' Law and show that it is in accordance with the law of conservation of energy.

3. Use Lenz' law to find the direction of induced emf in a coil when
(a) a north pole is brought towards the coil
(b) north pole taken away from the coil
(c) A south pole isbrought towards the coil and
(d) a south pole is taken away from the coil,
Draw illustrations in each case.

CBSE Class 9 Chemistry - Matter in our surroundings - Unit Test Paper (#cbsenotes)(#eduvictors)

Matter In Our Surroundings

(Unit Test Paper)

Matter in our surroundings 

Unit Test Paper

1. What is the physical nature of  matter? 

2. What are the characteristics of particles of matter? 

3. Why do the particles  mix faster in gases than in solids or liquids? 

4. Why can you smell an incense stick in the whole room even if it is lit at one place? 

5. Comment on the properties of matter in tabulated form keeping in mind the rigidity,  compressibility, kinetic energy,  fluidity and density.

CBSE Class 9 - Lines and Angles - Brain Teaser (#cbsenotes)(#eduvictors)

Lines and Angles - Brain Teaser

Q: What is the measure of ∠A + ∠B + ∠C + ∠D + ∠E  in the figure given below, assuming no angles and sides are equal. Give reason to your answer.

Answer:

CBSE Class 12 - Physics - Magnetic Effect of Current - Important Theory Questions (#cbsenotes)(#eduvictors)

Magnetic Effect of Current 

(Theoretical Questions)

1. State Biot- Savart law and apply it to find the magnetic field due to a circular loop carrying current at a point (a) at its centre (b) on the axis


2. State Ampere's circuital law and apply it to find the magnetic field (a) inside a current carrying solenoid (b) inside a current carrying toroid.


3. Apply Ampere's circuital law to determine the magnetic field at a point due to a long straight current carrying conductor.


4. Derive an expression for the force on a current carrying conductor in a uniform magnetic field