Educational Institute "Vidyarthi"

Offline classes starting soon - VI to VIII all Science subjects;
Chemistry till XII All boards

Enrolment free.

Enrol in small batches of same board.

Enjoy to answer the questions :

Question 1: Some months have 31 days, others have 30 days, but how many have 28 days?

Question 2 : “The attorney is my brother,” testified the accountant. But the attorney testified he did not have a brother. Who is lying?

Question 3 : My friend's farm had a terrible storm last night and all but seven sheep were killed. How many sheep are still alive?

Question 4: What goes up and down, but always remains in the same place?

Question 5 : What is it that goes up, but never comes down?

Question 6 : What happened when the wheel was invented?

Question 7 : What has a head, a tail, but does not have a body?

Question 8. If you place a cup on the table facing south while you are on the north side of the table, on which side is the cup’s handle?

Please wait for the next post for correct answers.

Science teacher required

We are starting offline classes, small batches

As many of you replied , here are the answers on Heat :

Which of the following is the fastest process of heat transfer?
 conduction
 convection
 radiation
 All of the above are equal
Answer : radiation

• The factors directly proportional to the amount of heat conducted through a metal rod are -
 Time of flow of Heat
 Area of cross section
 Temperature gradient
 All the above
Answer : All the above

• What would be the thermal resistance of an ideal conductor?
 Zero
 One
 Infinity
 Ten
Answer: Zero

• Why does the bottom of a lake not freeze in severe winter even when the surface is all frozen?

 The water has large specific heat
 The conductivity of ice is low
 The water has large latent heat of fusion
 The temperature of the earth at the bottom of the lake is high.
Answer : The conductivity of ice is low

Our ambient temperature is decreasing .

Let's enjoy HEAT now by answering the following questions :

• Which of the following is the fastest process of heat transfer?
 conduction
 convection
 radiation
 All of the above are equal

• The factors directly proportional to the amount of heat conducted through a metal rod are -
 Time of flow of Heat
 Area of cross section
 Temperature gradient
 All the above

• What would be the thermal resistance of an ideal conductor?
 Zero
 One
 Infinity
 Ten

• Why does the bottom of a lake not freeze in severe winter even when the surface is all frozen?
 The water has large specific heat
 The conductivity of ice is low
 The water has large latent heat of fusion
 The temperature of the earth at the bottom of the lake is high.

Many more to follow........

Think & Reply ;
Follow us to verify the replies

Check the answers :

PHOTOSYNTHESIS – know more

1. In photosynthesis, there may be ( a) ‘light reaction ‘ / (b) ‘ dark reaction ‘-

A. Only (a)

B. Both (a) & (b)

C. Only (b)

D. None

Ans: B

2. Rate of photosynthesis does not depend upon:

A. Quality of light

B. Intensity of Light

C. Duration of Light

D. Temperature

Ans: C

3. For photosynthesis green plants require:

A. Chlorophyll only

B. Light

C. Carbon dioxide and water

D. All of the above

Ans: D

4. Photosynthesis is a/an _____ process.

A. Catabolic

B. Anabolic

C. Exothermic

D. Metabolic

Ans: B

5. Name the pigment which is responsible for absorption of light in plants?

A. Chlorophyll

B. Stomata

C. Xylem

D. Phloem

Ans: A

6. In bacteria name the colour of light which is responsible for photosynthesis?

A. Ultra-Violet

B. Blue

C. Red

D. None of the above

Ans: C

Online classes are going on - all boards

Spoken English classes- individual & in groups

PHOTOSYNTHESIS – know more

1. In photosynthesis, there may be ( a) ‘light reaction ‘ / (b) ‘ dark reaction ‘-

A. Only (a)

B. Both (a) & (b)

C. Only (b)

D. None

2. Rate of photosynthesis does not depend upon:

A. Quality of light

B. Intensity of Light

C. Duration of Light

D. Temperature

3. For photosynthesis green plants require:

A. Chlorophyll only

B. Light

C. Carbon dioxide and water

D. All of the above

4. Photosynthesis is a _____ process.

A. Catabolic

B. Anabolic

C. Exothermic

D. Metabolic

5. Name the pigment which is responsible for absorption of light in plants?

A. Chlorophyll

B. Stoma

C. Xylem

D. Phloem

6. In bacteria name the colour of light which is responsible for photosynthesis?

A. Ultra-Violet

B. Infrared

C. Red

D. Green

More next day ,
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Online education gives learning a new relevance to contemporary society and professional and industry practice

Striking Benefits :

1. Information sharing

Online education provides opportunities to access and share information more easily and readily irrespective of the geographic locations of the teacher & the taught.

2. Online resources

Online education provides access to resources and information at a greater depth and breadth

3. Diversifying and enriching experience

Online education can enhance the student learning experience by providing opportunities for cross-disciplinary, cross-cultural and/or cross-campus collaborations - occurring at local, national or international level, and can be enriched by increased interaction and feedback.

4.Access, equity & disability

Online delivery provides a mechanism for equal opportunity among students and teachers who have difficulties to access and attend a face-to-face class

Online classes are going on in Science subjects and in English till class VI- all boards.
Flexible timing

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