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Subir Dutta
Subir Dutta
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Subir Dutta

Studied Bachelor of Science in Mathematics at Banwarilal Bhalotia College (Id: C-44735)
Assistant Teacher at Gyan Bharati school Raniganj
Live in India,
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Hi, myself Subir Dutta. I am s Mathematics faculty ,I teach science also in seco...
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Subir Dutta
01 Jan 1970 05:30 AM study24x7 study24x7

For a normal person far point is situated at infinity

A

true

B

false

Class 10 Sciences
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Subir Dutta
01 Jan 1970 05:30 AM study24x7 study24x7

Exchange of ions take place in---

A

Displacement reaction

B

Decomposition reaction

C

Combination reaction

D

Double displacement reaction

Class 10 Sciences
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Subir Dutta
01 Jan 1970 05:30 AM study24x7 study24x7

What does a displacement reaction means?? Give an example

Class 10 Sciences
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Subir Dutta
01 Jan 1970 05:30 AM study24x7 study24x7

Points to be remembered::Concave lens is called diverging lens whereas convex lens is called converging.

Class 10 Sciences
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Subir Dutta
01 Jan 1970 05:30 AM study24x7 study24x7

Degree of a constant polynomial is------

A

0

B

1

C

not defined

Class 9
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Subir Dutta
01 Jan 1970 05:30 AM study24x7 study24x7

Degree of a polynomial is determined by checking the highest power which is present in the variable.

Class 9
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Subir Dutta
01 Jan 1970 05:30 AM study24x7 study24x7

Factorise x^2+6x-16

A

(x+8)(x-2)

B

(x-8)(x-2)

C

(x+8)(x+2)

D

(x-8)(x+2)

Class 9
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