CBSE Class 10th Science Mix Test

Result

CBSE Class 10th Science Mix Test - 4

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Weekly Quiz Competition

Question 1
1 / -0

The magnetic field inside the body forms the basis of obtaining the images of different body parts. This is done using a technique called magnetic resonance imaging (MRI). Magnetism has, thus, got important uses in medicine.

MRI helps in:

A
Medical diagnosis

B
Chemical diagnosis

C
Physical body parts imaging

D
Both (A) and (C)
Question 2
1 / -0

The magnetic field inside the body forms the basis of obtaining the images of different body parts. This is done using a technique called magnetic resonance imaging (MRI). Magnetism has, thus, got important uses in medicine

Magnetic field is a __________ quantity.

A
Scalar

B
Vector

C
Tensor

D
None
Question 3
1 / -0

Amoeba obtains its food by the process of :

A
Chemi-absorption

B
Endocytosis

C
Swallowing

D
None.

Solution

Amoeba envelops its food through the process of endocytosis or phagocytosis, where pseudopodia are created by flexibility of the plasma membrane. The pseudopodia is the temporary arm- like projection in amoeba that helps collect the nutrition, alter its size and shape and acts as an organ of locomotion. Amoeba takes in food using temporary finger-like extensions of the cell surface which fuse over the food particle forming a food vacuole. Inside the food vacuole, complex substances are broken down into simpler ones which then diffuse into cytoplasm. The remaining undigested material is moved to the surface of the cell and thrown out.

The complete phagocytosis process includes intake, digestion, absorption, assimilation and egestion process.
Question 4
1 / -0

Which juice is secreted by the walls of the small intestine ?

A
Bile juice

B
Pancreatic juice

C
Intestinal juice

D
All

Solution

The intestinal juice secreted by the walls of the small intestine breaks down starch and carbohydrates into simple sugars. These sugars are known as glucose. It also converts the proteins into amino acids.
Question 5
1 / -0

Many optical instruments consist of a number of lenses. They are combined to increase the magnification and sharpness of the image. The net power(P) of the lenses placed in contact is given by the algebraic sum of the individual powers \(P_1,P_2,P_3.....\) as :

\(P=P_1+P_2+P_3+.......\)

Opticians use powers, instead of focal lengths, for prescribing glasses because...

A
It is convenient

B
It is cumbersome

C
Focal length calculation is lens system is complex

D
Both (A) and (C).
Question 6
1 / -0

Many optical instruments consist of a number of lenses. They are combined to increase the magnification and sharpness of the image. The net power(P) of the lenses placed in contact is given by the algebraic sum of the individual powers \(P_1,P_2,P_3....\) as:

\(P=P_1+P_2+P_3+......\)

Lens system (consisting of several lenses in contact) is commonly used in the design of lenses of:

A
Cameras

B
Microscopes

C
Telescopes

D
All
Question 7
1 / -0

Many optical instruments consist of a number of lenses. They are combined to increase the magnification and sharpness of the image. The net power(P) of the lenses placed in contact is given by the algebraic sum of the individual powers \(P_1,P_2,P_3.....\) as:

\(P=P_1+P_2+P_3+......\)

Lens system increases...

A
Brightness

B
Magnification

C
Sharpness

D
Both (B) and (C).
Question 8
1 / -0

Many optical instruments consist of a number of lenses. They are combined to increase the magnification and sharpness of the image. The net power(P) of the lenses placed in contact is given by the algebraic sum of the individual powers \(P_1,P_2,P_3.....\) as :

\(P=P_1+P_2+P_3+......\)

Power of a concave lens is ?

A
Positive

B
Negative

C
Neutral

D
None
Question 9
1 / -0

Many optical instruments consist of a number of lenses. They are combined to increase the magnification and sharpness of the image. The net power(P) of the lenses placed in contact is given by the algebraic sum of the individual powers \(P_1,P_2,P_3....\) as:

\(P=P_1+P_2+P_3+......\)

A combination of two lenses of power +2.0 D and +0.25 D is equivalent to a single lens of power....

A
+2 D

B
+3 D

C
+2.25D

D
None
Question 10
1 / -0

Many optical instruments consist of a number of lenses. They are combined to increase the magnification and sharpness of the image. The net power(P) of the lenses placed in contact is given by the algebraic sum of the individual powers \(P_1,P_2,P_3......\) as:

\(P=P_1+P_2+P_3+......\)

Lens of power +2.0 D has focal length, equal to:

A
+1 m

B
+0.50 m

C
2 m

D
None

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Re-Attempt Weekly Quiz Competition

CBSE Class 10th Science Mix Test - 4

Result

CBSE Class 10th Science Mix Test - 4

Score

-

Rank

-

SHARING IS CARING

Question 1

Medical diagnosis

Chemical diagnosis

Physical body parts imaging

Both (A) and (C)

Question 2

Scalar

Vector

Tensor

None

Question 3

Chemi-absorption

Endocytosis

Swallowing

None.

Solution

Question 4

Bile juice

Pancreatic juice

Intestinal juice

All

Solution

Question 5

It is convenient

It is cumbersome

Focal length calculation is lens system is complex

Both (A) and (C).

Question 6

Cameras

Microscopes

Telescopes

All

Question 7

Brightness

Magnification

Sharpness

Both (B) and (C).

Question 8

Positive

Negative

Neutral

None

Question 9

+2 D

+3 D

+2.25D

None

Question 10

+1 m

+0.50 m

2 m

None

User

Question Analysis

My Perfomance

Score

-

Rank

-

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