NSO Level 1- Science Olympiad (SOF) Class 10: Questions 729 - 732 of 986

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Question number: 729

» Chemical Reactions and Equation

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MCQ▾

Question

The molecules of oxygen for balanced equation is,

Choices

Choice (4) Response

a.

5

b.

3

c.

6

d.

2

Question number: 730

» Our Environment and Its Management

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MCQ▾

Question

Primary consumers fit in to ________ trophic level

Choices

Choice (4) Response

a.

First

b.

Third

c.

Second

d.

Forth

Question number: 731

» Light - Reflection and Refraction

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MCQ▾

Question

Select the only incorrect option in case of a convex mirror:

Choices

Choice (4) Response

a.

Table of the case of a convex mirror

Table of the case of a convex mirror

Object position

Image position

Image size

Nature of image

Behind the object

Larger than the object

Virtual and Erect

b.

Table of the case of a convex mirror: Choice B

Table of the case of a convex mirror

Object position

Image position

Image size

Nature of image

At the Focus

At infinity

Smaller than the object

Virtual and Erect

c.

Table of the case of a convex mirror: Choice C

Table of the case of a convex mirror

Object position

Image position

Image size

Nature of image

Beyond

Larger than the object

Real and inverted

d.

Table of the case of a convex mirror: Choice D

Table of the case of a convex mirror

Object position

Image position

Image size

Nature of image

At

At on the other side of the lens

Same size of the object

Real and inverted

Question number: 732

» Magnetic Effects of Electric Current

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MCQ▾

Question

As shown in the figure, a conducting rod PQ moves parallel to X-axis in a uniform magnetic field, pointing in the positive Z-direction. The end Q of the rod gets

Figure of the conducting rod PQ

Figure of the Conducting Rod PQ

Figure of the conducting rod PQ

Choices

Choice (4) Response

a.

Negative charged

b.

First positive charged and then negative charged

c.

Neutral

d.

Positive charged