Physics Gurukul Friction Introduction If we slide or try to slide a body over a surface the motion is resisted by a bonding between the body and the surface. This resistance is represented by a single force and is called friction. The force of friction is parallel to the surface and opposite to the direction of intended motion. Types … Read more
VERY SHORT ANSWER TYPE QUESTIONS (1 Mark) Q1. What is a natural resource? Ans.: All the material we obtain from nature and use it is called natural resource. Q2. Name two important natural resources. Ans.: Forest, Water, Wildlife. Q3. What are 3 R’s used to save environment? Ans. Reduce, Recycle and Reuse. Q4. Define biodiversity. … Read more
Q1. Which of the following is a green house gas? (a) Nitrogen dioxide (b) Sulphur dioxide (c) Carbon dioxide (d) Carbon monoxide Q2. Floods can be prevented by (a) afforestation … Read more
Q1. The forest is located in a place where villages and tribals are dependent on it. Industrialist is the stakeholder of the forest who is cutting down the trees for profits. What could be the harmful effect of this on forest, local people and environment. Q2. People of locality A has constructed tanks, wells, khadims … Read more
Q1. What changes can you make in your habits to become more environment-friendly? Ans. (i) Do not throw garbage on the road side. (ii) Switch off lights, fans, TV when not required. (iii) Use less water for bathing, washing jobs. (iv) Use jute … Read more
Facts that Matter 1. Ganga Action Plan started in 1985 to remove the pollution in Ganga. 2. The 3 R’s. to save environment are (a) Reduce (b) Recycle (c) Reuse 3. Sustainable development encourages forms of growth that meet current basic human needs and needs of future … Read more
1. A light body and heavy body have equal momentum, which one have greater kinetic energy? 2. What does speedometer of a car indicates? 3. Write down the dimensions of viscosity coefficient 4. Why do we use ball-bearings? 5. How errors are combined in following mathematical operations of physical quantities? … Read more
ELECTRIC CHARGES AND FIELDS Electrostatics: Electrostatics is the study of electrical charges at rest (static electricity). Electric Charge: Have you ever noticed what happens when a comb is ruffled through hair? It now becomes capable of attracting small pieces of paper. Similarly, a glass rod rubbed with silk cloth acquires the property of … Read more
I. VERY SHORT ANSWER TYPE QUESTIONS (1 Mark) Q1. Define heredity. Ans. Heredity deals with the inheritance of characters from one generation to the next. Q2. Define variations. Ans. Variations are differences that occur between the organisms of the same species in spite of the same basic feature. Q3. How does the creation of variations in … Read more
Q1. Name two human traits that show variations. Q2. Who is known as the ‘father of genetics’? Q3. What is microevolution? Q4. What is the probability that a human progeny will be a boy? Q5. What is a gene? Q6. What is genetic drift? Q7. State the importance of variations. Q8. What are fossils? Give … Read more
NCERT IN-TEXT QUESTIONS SOLVED Q1. If a trait A exists in 10% of a population of an asexually reproducing species and a trait B exists in 60% of the same population, which trait is likely to have arisen earlier? Ans. Trait B is likely to have arisen earlier as it occurs in more number. Q2. … Read more
Facts that Matter Heredity is the transmission of characters or traits from the parents to their offspring. Variation is the difference in the characters or traits among the individuals of a species. Accumulation of Variations Sexual reproduction of organisms produces variations. The variations produced in organisms during successive generations get accumulated in the organisms. … Read more
Q.1) What is the direction of the force acting on a charge particle q, moving with a velocity v in a uniform magnetic field B ? Answer: Q.2) Name the part of the electromagnetic spectrum of wavelength 10- 2 m and mention its one application. Answer: Q.3) An electron and alpha particle have the same … Read more
This section will be updated regularly. Stay tuned!!! Q.1) Which point defect in crystals does not alter the density of the relevant solid? Answer: Frenkel defect. Q.2) Define the term ‘Tyndall effect’. Answer: The scattering of light by colloidal particles is known as Tyndall effect. Q.3) Why is the froth floatation method selected for the … Read more
Points to Remember 1. HCP and CCP have equal efficiency i.e., 74% of space is occupied and coordination number is 12. CCP arrangement has FCC lattice. 2. Coordination number is the number of nearest neighbouring points surrounding a particular lattice point (point may be atom, ions or molecules). 3. Packing ef ciency in simple cubic … Read more
There are a lots of career options After 12, for Science stream – Medical (Physics, Chemistry & Biology) and Non – Medical (Mathematics, Physics, Chemistry) Courses for PCMB (Physics, Chemistry, Maths & Biology) Dentist – BDS (5 years) Doctor – BHMS, BAMS, MBBS (5.5 years) Bachelor of Naturopathy & Yogic Science – BNYS (5.5 years) Veterinary … Read more
Acids, Bases & Salts PAGE- 18 Question 1: You have been provided with three test tubes. One of them contains distilled water and the other two contain an acidic solution and a basic solution, respectively. If you are given only red litmus paper, how will you identify the contents of each test tube? Answer 1: If the colour … Read more
NCERT Solutions for Class 10 Science Chapter 1 Chemical Reactions and Equations Gurukul Provides NCERT Solutions for Class 10 Science. You can download these solutions in PDF format for free. All questions are solved by subject experts keeping in mind the NCERT guidelines. Students can use these questions for practice. Here, we have given NCERT Solutions for … Read more
1. The changes which take place in substances can be broadly classified as physical changes and chemical changes. 2. During a physical change, only the state of the substance changes, but not its chemical composition. Furthermore, a physical change is a temporary change, which can be reversed by changing the physical experimental conditions. At the … Read more
1. There are two kinds of electric charges i.e., positive and negative. The opposite charges attract each other and the similar charges repel each other. Coulomb (C) is the standard unit of charge. 2. Conductors: The substances through which electricity can flow are called conductors. Silver, copper, gold and aluminium are examples of conductors. 3. … Read more
Very Short Answer Type Questions: 1. Define electric work. 2. What is the unit of electric work? Define it, in relation to quantity of charge and potential difference. 3. Name two bigger units of electric work. 4. What do you understand by the term current electricity? 5. Define the term “electric current”. 6. How is … Read more
MATHEMATICS Real Number: Book by Sanjeet Singh Assignments Polynomials: Book by Sanjeet Singh Assignments- 1 2 3 4 5 Linear Equation in Two Variables: Book by Sanjeet Singh Quadratic Equations: Book by Sanjeet Singh Assignments
♦ Science ♠ Mathematics ♦ Previous Years Paper (With Complete Solution)
SCIENCE The CBSE syllabus for class 10 science consists of different chapters with 80 marks for the theory and 20 for the practicals. PG provides CBSE prep material for class 10 students. NCERT Solutions For Class 10 Science: All These Questions have been solved keeping in mind the guidelines issued by the CBSE. This has … Read more
CHAPTER-1: SETS Ex-1.1
