Home / Science MCQs / Department 1 / Page 1

Science MCQ Questions with answers

Here Important Science MCQ questions are added which are frequently asked in almost all the examinations. You can check the correct answer of any question on clicking the show answer button or on option itself. The Correct answer will be displayed below. You can share any question with your friends on whatsapp by tapping whatsapp button.

Learn Science mcqs in hindi here.

Tags: Science mcqs, important mcqs of Science, Science important Science mcqs, mcqs on Science, important mcqs on Science, mcqs of Science

Learn Science MCQs [Page 1 of Department 1]

1) Which of the following is not a unit of Energy? 

(A) Calorie
(B) Joule
(C) Electron Volt
(D) Watt
Correct Answer - Option (C)

Explanation:
A) Joule (J). This is the basic energy unit of the metric system, or in a later more comprehensive formulation, the International System of Units (SI). It is ultimately defined in terms of the meter, kilogram, and second. B) Calorie (cal). Historically the calorie was defined in terms of the heating of water. Thus, in a traditional definition, one calorie is the amount of heat required to raise the temperature of 1 gram of water by 1°C, from 14.5 °C to 15.5 °C. (This is sometimes referred to as the 15 °C calorie, and differs slightly from the "calorie" measured for other temperature intervals.) More recently the calorie has been defined in terms of the joule; the equivalence between the calorie and joule is historically known as the mechanical equivalent of heat. C) Kilowatt-hour (kWh). The kilowatt-hour is a standard unit of electricity production and consumption. By definition, noting that 1 kilowatt = 1000 watts:

Share in MCQ Buddy Groups

Share

6) What is the full form of LASER? 

(A) Light Amplification by Radiation
(B) Light Amplification by Stimulated Emission of Radiation
(C) Light Radiation Amplification
(D) Stimulation Radiation of Light
Correct Answer - Option (B)

No Explanation found. Add Explanation and get +2 points.

Share in MCQ Buddy Groups

Share

7) Which type of waves are used by a ‘RADAR’ for detecting the presence of an aircraft?

(A) Sound waves
(B) Electric waves
(C) Radio waves
(D) Ultrasonic waves
Correct Answer - Option (C)

No Explanation found. Add Explanation and get +2 points.

Share in MCQ Buddy Groups

Share

9) Brass gets discoloured in air because of the presence of which of the following gases in air?

(A) Oxygen
(B) Hydrogen sulphide
(C) Carbon dioxide
(D) Nitrogen
Correct Answer - Option (B)

No Explanation found. Add Explanation and get +2 points.

Share in MCQ Buddy Groups

Share

10) Which of the following is a non metal that remains liquid at room temperature?

(A) Phosphorus
(B) Bromine
(C) Chlorine
(D) Helium
Correct Answer - Option (B)

No Explanation found. Add Explanation and get +2 points.

Share in MCQ Buddy Groups

Share

You are learning MCQ Questions of Science Department : 1 | Page : 1

Attempt 200+ Quizzes on Science

Download our easy to use, user friendly Android App from Play Store. And learn MCQs with one click.

Image

MCQ Buddy is a community website which helps students in learning new questions, topics, hindi questions, programming questions, cbse questions. These questions are shared by registered users. You can also share question in this portal. Sign Up to share, upvote, add solution/explation of any question.
Sharing is Caring. Help other students by sharing questions, update solutions/explanations of questions added.

Login

Forgot username? click here

Forgot password? Click here

Don't have account? Register here.