Physical Science Crash Course (Based on Revised Syllabus-2023)>Chapter 13 - Solved Science Paper-1>Exercise>Q 29

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10th Telangana Board

IMPORTANT

Earn 100

Correct ray diagram from the following is

50% studentsanswered this correctly

Important Questions on Solved Science Paper-1

EASY

10th Telangana Board

IMPORTANT

Physical Science Crash Course (Based on Revised Syllabus-2023)>Chapter 13 - Solved Science Paper-1>Exercise>Q 5

A doctor suggested to use the

+ 50 cm

focal length lens to correct a person’s eye defect, mention which type of defect he is suffering and mention type of lens doctor suggested.

EASY

10th Telangana Board

IMPORTANT

Physical Science Crash Course (Based on Revised Syllabus-2023)>Chapter 13 - Solved Science Paper-1>Exercise>Q 6

Name the material used for making the filament of a bulb. Give reason.

HARD

10th Telangana Board

IMPORTANT

Physical Science Crash Course (Based on Revised Syllabus-2023)>Chapter 13 - Solved Science Paper-1>Exercise>Q 13

Here are some results of solutions tested with universal indicator paper:
Sulphuric acid : Red
Metal polish : Dark blue
Washing-up liquid : Yellow
Milk of magnesia : Light blue
Oven cleaner : Purple Pink
Car battery acid : Pink
Arrange the solutions in order of their increasing pH values(starting with the one with the lowest

p H

).

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10th Telangana Board

IMPORTANT

Physical Science Crash Course (Based on Revised Syllabus-2023)>Chapter 13 - Solved Science Paper-1>Exercise>Q 16

What is the need for the classification of elements?

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10th Telangana Board

IMPORTANT

Physical Science Crash Course (Based on Revised Syllabus-2023)>Chapter 13 - Solved Science Paper-1>Exercise>Q 17

Identify Dobereiner’s triads from the following groups of elements having similar chemical properties.
1. $Mg (24.3), Ca (40.1), Sr (87.6)$

2. $S (32.1), Se (79.0), Te (127.6)$

3. $Be (9.0), Mg (24.3), Ca (40.1)$

HARD

10th Telangana Board

IMPORTANT

Physical Science Crash Course (Based on Revised Syllabus-2023)>Chapter 13 - Solved Science Paper-1>Exercise>Q 19

Give an example of hydrolysis of salt of a strong base and weak acid - cite the equation.

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10th Telangana Board

IMPORTANT

Physical Science Crash Course (Based on Revised Syllabus-2023)>Chapter 13 - Solved Science Paper-1>Exercise>Q 30

Correct ray diagram from the following is

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10th Telangana Board

IMPORTANT

Physical Science Crash Course (Based on Revised Syllabus-2023)>Chapter 13 - Solved Science Paper-1>Exercise>Q 31

Image formed when we read the paper by using magnifying glass is