QUESTIONS AND ANSWERS ON PHYSICS (HIGH SCHOOL LEVEL)

-
Q.1. House hold appliances are connected in :

(a) Parallel  (b) Series  (c) Delta  (e) None of these

Q.2. Which of the following monochromatic light scatters least :

(a) Violet  (b) Red  (c) Yellow  (d) None of these

Q.3. Which of the following is known as 'Mechanical battery'?

(a)  Solar cell  (b) Capacitor  (c) Flywheel  (d) None of the above

Q.4. Transformer is operated in :

(a) DC  (b) AC  (c) Both AC and DC  (d) None of these

Q.5. Magnifying glass is a :

(a) Convex lens  (b) Concave lens  (c) Convex mirror  (d) Concave mirror

Q.6. The graph of 'Traveling distance' vs. Time (when acceleration is zero) will be :

(a) Straight line  (b) Parabolic in nature (c) Circular  (d) None of the above

 Q.7. Which of the following is the main reason for the energy generation of the Sun?

(a) Nuclear fission  (b) Nuclear fusion  (c) Chemical reaction  (d) None of these

Q.8. Which electromagnetic wave (EM wave) has highest energy :

(a) Radio wave  (b) X-ray  (c) Gamma ray  (d) None of these

Q.9. Which of the following is scalar quantity :

(a) Velocity  (b) Current  (c) Force  (d) None of these

Q.10. Which is used to rectify the direction of the current ?

(a) Capacitor  (b) Resistor  (c) Diode  (d) None of these


     Ans

Q.1. → (a) Parallel               Q.2. → (b) Red                   
Q.3. → (c) Flywheel             Q.4. → (b) AC
Q.5. → (a) Convex lens        Q.6. → (a) Straight line
Q.7. → (b) Nuclear fusion    Q.8. → (c) Gamma ray
Q.9. → (b) Current               Q.10.→(c) Diode






Know about Basic Electronics and Electrical devices 

Questions Answers on CURRENT ELECTRICITY 





Comments

Post a Comment

Popular posts from this blog

FUNCTION OF BASS, TREBLE, VOLUME OPTION IN AN AMPLIFIER

-
Image
Bass and Treble options are used to regulate the sound on the basis of frequency.  Generally a audio amplifier has 3 main controlling options. (i) Volume or Master  (ii) Bass (iii) Treble Volume : When we increase Volume the loudness of the audio is increased. In frequency level, the amplitude of all the frequencies are increased.  Similarly, when we decrease Volume, the loudness is decreased i.e. amplitude of all the frequencies are decreased. Bass : When we increase Bass, the loudness of only lower frequencies are increased i.e. amplitude of the lower frequencies are increased. When we decrease Bass, the loudness of only lower frequencies are decreased i.e. amplitude of the lower frequencies are decreased. Treble : When we increase / decrease the Treble, the loudness of the sound of only higher frequencies are increased / decreased. Now the main questions is that what do lower and higher frequencies mean ? We know that human beings able to h...
Read more

Purity Test of Purified Water (For School & College level lab practical)

-
Purity Test of Purified Water Requirement : Test tube, test tube holder, test tube rack, labeling materials (pen, paper, scissors, gum).  Reagent : Litmus paper (red and blue), BaCl 2 , AgNO 3 , Ammonium Oxalate, NH 4 OH, Nessler's Reagent, Sodium Sulfide, Ingredients: Supplied purified water.  Procedure: Experiment 1: Some amount of purified water is taken in a test tube.  Observation : Clean, colorless, odorless. Inference : May be pure. Experiment 2: Litmus Test: Some amount of purified water is taken in a clean test tube. (a) A blue litmus paper is dipped into the solution. (b) A red litmus paper is dipped into the solution.  Observation : (a) The colour of blue litmus paper is not changed. (b) The colour of red litmus paper is not changed. Inference : (a) Absence of Acid. (b) Absence of alkali. Experiment 3: Some amount of purified water is taken in a test tube. Few ...
Read more

KNOW ABOUT BASIC ELECTRICAL AND ELECTRONIC DEVICES

-
Image
Nowadays, we are familiar with the, electricity and various electrical instruments. There are many things  e.g light, fan, TV, refrigerator,switch,fuse etc. in our house. We use this instruments. But we frequently listen some terms and devices name viz. voltage, current, AC Current, DC Current, resistor, transformer, capacitor, LED, inductor etc . which we don't use these directly. But, amazing fact is that, the instruments which we daily use, are made of these(resistor, capacitor etc.).  Let's discuss these. Here, I don't discuss these so deeply. What is Voltage? and  What is Current? Voltage( Potential difference) represents the force. And Current represents the flow of electrons in the circuit. We (who are the basic users or novice) need not know much about this. It is a image of mobile charger.See what is written as input and output The unit of voltage is volt ( v ) and current is ampere ( A ). 1mA=(1/1000) A You obviously heard the term...
Read more