## Pages

Showing posts with label class10-physics. Show all posts
Showing posts with label class10-physics. Show all posts

# Best Books for Science Class 10

Class 10 is a crucial turning point in a student's academic career, and passing the CBSE exams depends on possessing the correct reference books.

When choosing science books for standard 10 students, it is important to consider a few key factors, including the level of difficulty, relevance to the curriculum, and engagement level. Here are some tips to help you choose the best science books for standard 10 students:  # CBSE Class 10 - Science (MCQs)

Q1. In which of the following, heat energy will be evolved?

(a) Electrolysis of water

(b) Dissolution of NH4Cl in water

(c) Burning of L.P.G.

(d) Decomposition of AgBr in the presence of sunlight  # CBSE Class 10 - Physics - Light - Reflection and Refraction (MCQs)

Q1: The laws of reflection hold true for:

(a) plane mirrors only

(b) concave mirrors only

(c) convex mirrors only

(d) all reflecting surfaces

Q2: Focal length of a plane mirror is

(a) zero

(b) infinite

(c) 25 cm

(d) -25 cm  # CBSE Class 10 Physics - Electricity (1 Mark Based Questions and Answers) Part-1

Q1: By what other name is the unit joule/coulomb called ?

Q2: Which of the following statements correctly defines a volt ?

(a) a volt is a joule per ampere.

(b) a volt is a joule per coulomb.

Answer: (b) a volt is a joule per coulomb.

Q3: (a) What do the letters p.d. stand for ?

(b) Which device is used to measure p.d. ?

(a) p.d. stands for potential difference.

(b) Voltmeter is used to measure p.d.  # Class 10 - SCIENCE - Question Bank - Very Short Answers Based Questions (Unsolved)

1. Why does not a wall immediately acquire a white colour when a coating of slaked lime is applied on it ?

2. Define displacement reaction with one example.

3. Identify the most reactive and least reactive metal : Al, K, Ca, Au.

4. Which of the following is a combination reaction and which is a displacement reaction ?

(a) Cl₂ + 2KI ——–> 2KCl + I₂

(b) 2K + Cl₂ ——–> 2KCl.

5. What is the difference between the following two reactions ?

(a) Mg + 2HCl ——–> MgCl2 + H2

(b) NaOH + HCl ——–> NaCl + H2O.

6. Identify the compound which is oxidised in the following reaction

H₂S + Br₂ ———–> 2HBr + S.

7. What happens chemically when quick lime is added to water ?  # Class 10 Physics - Electricity - Open Circuit vs Closed Circuit vs Short Circuit

Open Circuit

An open circuit implies that the two points are externally disconnected, which is equivalent to a resistance R = ∞ . This means that theoretically no current(I = 0) can flow between the two terminals, regardless of any value of potential difference ( V= 0 to ∞).  # Magnetic Effect of Electric Current - MCQs-2

CBSE Class 10 Physics

Buy Oswal Science Question Bank (For 2021 Examination)

Directions: Read the question carefully and choose the right option from the choices given.

Q1: The south pole of a freely suspended magnet points to the:

(a) Geographical south
(b) Geographical north
(c) Slightly left of geographical north
(d) None of these

Q2: For the current-carrying solenoid as shown below, at which point the field strength is maximum?

(a) At point A
(b) At point B
(c) At point C
(d) All of these  # Light (Reflection and Refraction) - Worksheet

CBSE Class 10 - Physics

Directions: Give one-word answer to the following questions (Q1 - Q10).

Q1:  Which property of light changes when it travels from one medium to another?

Q2: Name the ray of light that falls on a mirror.

Q3: How is focal length, (f) of a mirror related to its radius of curvature (R)?

Q4: What kind of beam of light comes out of a car headlight?

Q5: Which mirror forms an image with the following characteristics.
(a) Virtual (b) Erect (c) Same size as the object (d) Laterally inverted  ## CBSE Class 10 - Physics - Study Notes - MCQs, Worksheets, NCERT Solutions

Physics is a pivotal subject for students who wish to seek a career in engineering and other related fields. The majority of the ideas in class 10 Physics are significant as they build the foundations for senior-level physics that are taught in class eleventh and twelfth. Along these lines, having an intensive comprehension of the considerable number of ideas is pivotal to get higher marks in school tests as well as get acquainted with wide a range of information.

In this way, to assist the students with learning the subject more viably, physics notes for class 10 students are given here. These notes based on CBSE syllabus are all around organized, straightforward and spread all the significant points that students need to learn for the tests.

In addition, students can utilize the notes to not just ace in their assessment tests but are effecting in learning the important concepts. There are also 1 mark questions, MCQs and worksheets that will help students evaluate their knowledge about various topics. The notes are written in straightforward language and help students grasp basic concepts easily.

You can check out links to the study notes on various topics, exercises and chapters related to class 10 Physics are given below:  ## Science - MCQs

CBSE Class 10

Q1: Optical density of a medium depends on

(a) Density of the medium
(b) Thickness of the medium
(c) Velocity of light in that medium
(d) None of these

Q2: Which of the following is not a physical change?

(a) Boiling of water to give water vapour
(b) Melting of ice to give water
(c) Dissolution of salt in water
(d) Combustion of Liquefied Petroleum Gas (LPG)

Q3: Which of the following is correct about chromosomes?

(a) It is composed of DNA and lipids.
(b) It is composed of DNA and proteins.
(c) It is composed of DNA only.
(d) It is composed of RNA and proteins.  ## Magnetic Effects of Electric Current (Worksheet)

CBSE Class 10 - Physics

Fill in the blanks

1. The space around a magnet in which the force of attraction and repulsion due to the magnet can be detected is called the _____________.

2. Outside a bar magnet, the magnetic field lines tend to start from _______ pole  and reach ________ pole. Thus these field lines form _______ loops.

3. The region where the field lines are close together will have _______ magnetic field.

4. Is magnetic field a vector quantity? (Yes/No)  ## Understanding Spherical Mirrors

Class 10 - Physics - Chapter Light  ## Light (Spherical Mirrors) - Worksheet

Class 10 Physics

Fill in the blanks by opting either 'positive' or 'negative'

1. If an image is formed behind a concave mirror, the image distance (v) is __________.

2. If image is formed in front of a mirror, the image distance (v) is taken as ________.

3. The image distance (v) for concave mirror is considered ________.

4. The focal length of a concave mirror is considered _________.  ## Light - Image Formation By A Plane Mirror

(Q & A Part-3)
CBSE Class 10 - Physics  ## Chapter: Light - Reflection

Class 10 Physics  ## Chapter: Light (Q & A) Part-1Class 10 Physics  ## Electricity

MCQs (Set-2)

Q1: The rate of flow of an electric charge is known as:
(a) electric potential
(b) electric conductance
(c) electric current
(d) none of these

Q2: The SI unit of electric current is:
(a) ohm
(b) ampere
(c) volt

Q3: The instrument used for measuring electric current is:
(a) ammeter
(b) galvanometer
(c) voltmeter
(d) potentiometer  ## CHAPTER-12 ELECTRICITY

Q1: What is represented by joule/coulomb?

Q2: A charge of 2C moves between two plates, maintained at a p.d of 1V. What is the energy acquired by the charge?

Q3: Why are copper wires used as connecting wires?

Answer: The electrical resistivity of copper is low

Q4: A wire of resistivity 10 ohm meter is stretched to double its length. What is its new resistivity?

Answer: It remains same because resistivity depends on nature of material.

Q5: What is the resistance of connecting wire?

Answer: The resistance of a connecting wire, which is made of good conductor, is negligible.  # Physics: Important Discoveries

No. Discovery Scientist Year
1. Proton Rutherford 1919
3. Atom John Dalton 1808
4. Atomic Structure Neil Bohr & Rutherford 1913
7. Raman Effect CV. Raman 1928
8. X-Rays Roentgen 1895
9. Photoelectric effect Albert Einstein 1905
10. Periodic table Mendeleev 1888
11. Nuclear Reactor Anrico Fermi 1942
12. Wireless Telegram Marconi 1901
13. Dynamite Alfred Nobel 1867  ## Class 10 - Physics - 1 Mark Questions Asked in CBSE Examination Papers (Set-1)

Q1: Write the energy conversion that takes place in a hydropower plant.

Answer: Potential Energy ---> Kinetic Energy -----> Electrical Energy

Q2: If the image formed by a spherical mirror for all positions of the object placed in front of it is always erect and diminished, what type of mirror is it?  