# Science Content-How Things Work (CTET Paper-II Science): Questions 5 - 9 of 26

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## Question number: 5

» Science Content » How Things Work

Appeared in Year: 2015

MCQ▾

### Question

An object is vibrating at 5000 Hz. The time period of the sound produced is (Feb)

### Choices

Choice (4) Response

a.

0.0002 s

b.

0.5 s

c.

0.02 s

d.

0.005 s

## Question number: 6

» Science Content » How Things Work

Appeared in Year: 2012

MCQ▾

### Question

When electric current is passed through a metallic conductor, amount of heat produced in the conductor depends on its (Jan)

### Choices

Choice (4) Response

a.

Material, length and thickness

b.

Material and thickness only

c.

Material and length only

d.

Length and thickness only

## Question number: 7

» Science Content » How Things Work

MCQ▾

### Question

The time period of the produced sound is 0.006 seconds, then what is the frequency of the sound?

### Choices

Choice (4) Response

a.

170 Hz

b.

600 Hz

c.

166.67 Hz

d.

175 Hz

## Question number: 8

» Science Content » How Things Work

Appeared in Year: 2015

MCQ▾

### Question

Which one of the following can be used to form a virtual and magnified image of an object? (Feb)

### Choices

Choice (4) Response

a.

Convex mirror and convex lens

b.

Convex lens only

c.

Concave mirror and convex lens

d.

Concave lens only

## Question number: 9

» Science Content » How Things Work

Appeared in Year: 2014

MCQ▾

### Question

While teaching the correct method of using a spring balance to Class VIII students, Gunjan mentions the following steps (not in correct sequence) to be followed:

(1) Note the zero error.

(3) Note the position of pointer on the graduated scale.

(4) Record the least count of the spring balance.

Which one of the following is the correct sequence of the steps to be followed for the said purpose? (Feb)

### Choices

Choice (4) Response

a.

(1), (2), (4), (3)

b.

(4), (1), (3), (2)

c.

(1), (4), (3), (2)

d.

(1), (4), (2), (3)

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