No products in the cart.

Ask questions which are clear, concise and easy to understand.

Ask Question

    • Posted by Nutan Yadav 7 years, 4 months ago

    CBSE > Class 09 > Science
    • 1 answers

    Yogita Ingle 7 years, 4 months ago

    It was discarded because, he could not account for the stability of atom exactly. He proposed that the electrons are present in the atom just like the seeds of a watermelon or just like the dry fruits are distributed in a Christmas pudding. There was no order and even worse, the positive counterpart of these electrons was considered as the red edible mass of the watermelon(protons were not discovered that time). This theory couldn’t account for the overall stability of atom due to its lack of systematic approach.

    1Thank You

    ANSWER

    • Posted by Kavya Purohit 7 years, 4 months ago

    CBSE > Class 09 > Science
    • 2 answers

    Yogita Ingle 7 years, 4 months ago

    According to Law of conservation of energy; energy can neither be created nor be destroyed rather the form of energy can be converted from one form to another form.
    Law of conservation of Energy states that the total energy of a system remains unchanged before and after transformation.
    Example: When an object having potential energy is dropped from a height, the potential energy is changed into kinetic energy.

    1Thank You

    Kavya Purohit 7 years, 4 months ago

    Give me answer

    1Thank You

    ANSWER

    • Posted by Amit Kumar 7 years, 4 months ago

    CBSE > Class 09 > Science
    • 1 answers

    Yogita Ingle 7 years, 4 months ago

    Anode Rays are called the canal rays as the cathode used is porforated  and the anode rays pass through the holes or canals of The cathode  opposite to the anode. The anode rays produced at the anode of the discharge tube are called canal rays because they pass through the holes of the cathode.

    3Thank You

    ANSWER

    • Posted by Rushi Vyas 7 years, 4 months ago

    CBSE > Class 09 > Science
    • 1 answers

    Jaimina Gharia 7 years, 4 months ago

    Formula unit mass is same as molecular mass. Since the ionic compounds don't consist of molecules ,the term molecular mass is termed as formula unit mass.

    4Thank You

    ANSWER

    • Posted by C Rani 7 years, 4 months ago

    CBSE > Class 09 > Science
    • 1 answers

    Yogita Ingle 7 years, 4 months ago

    In space, there is no atmosphere to scatter the light towards your eye, and depending on the direction you are looking, nothing to reflect the light towards your eye. This means, unless you are looking directly at a light source, or something reflecting a light source (ie: the earth, the shuttle, the ISS), the non-lit area would appear dark. However, if you look directly at a light source, such as the sun, the intensity of the light would appear much brighter than from Earth because there is no atmosphere to scatter some of the light away from your eye.

    1Thank You

    ANSWER

    • Posted by Piyush Singh Rajput 7 years, 4 months ago

    CBSE > Class 09 > Science
    • 1 answers

    C Rani 7 years, 4 months ago

    Two chambered

    2Thank You

    ANSWER

    • Posted by Ishpreet Kaur 7 years, 4 months ago

    CBSE > Class 09 > Science
    • 0 answers
    ANSWER

    • Posted by Dipanshu Yadav 7 years, 4 months ago

    CBSE > Class 09 > Science
    • 1 answers

    Adarsh Agrawal 7 years, 4 months ago

    10-10nm

    0Thank You

    ANSWER

    • Posted by Akshay Mairal 7 years, 4 months ago

    CBSE > Class 09 > Science
    • 1 answers

    Dipanshu Yadav 7 years, 4 months ago

    1.volume of the object immersed in the liquid . 2.density of liquid in which object immersed 3.acceleration due to gravity.

    2Thank You

    ANSWER

    • Posted by Subashini Roshini 7 years, 4 months ago

    CBSE > Class 09 > Science
    • 3 answers

    Khushvant Chouhan 7 years, 4 months ago

    Action and reactions always equal and opposite

    1Thank You

    Arpita Singh 7 years, 4 months ago

    it states that every action have equal and opposite reaction ( in simple words) ?

    2Thank You

    Palak ?? 7 years, 4 months ago

    To every action ,there is an equal and opposite reaction

    2Thank You

    ANSWER

    • Posted by Mridul Gupta 7 years, 4 months ago

    CBSE > Class 09 > Science
    • 1 answers

    Sweta Ray 7 years, 4 months ago

    Gravitational force is the force by which every body or object is attracted towards the centre of the earth

    1Thank You

    ANSWER

    • Posted by Umash Singh 7 years, 4 months ago

    CBSE > Class 09 > Science
    • 1 answers

    Palak ?? 7 years, 4 months ago

    From 2as=v^2-u^2....we get 2*10*80/100=v^2-0...√16 =v so v=4.. Now p=MV,=10*4=40 kg m/s answer

    0Thank You

    ANSWER

    • Posted by Umash Singh 7 years, 4 months ago

    CBSE > Class 09 > Science
    • 1 answers

    Harsh Dagar 7 years, 4 months ago

    Vacuum is a space where no molecule or atom is present.Sound cannot travel through vacuum because sound needs medium such as( molecule of any state of matter).In vacuum no medium is present so sound does not travel through vacuum

    1Thank You

    ANSWER

    • Posted by Shivam Thakur 7 years, 4 months ago

    CBSE > Class 09 > Science
    • 1 answers

    Yogita Ingle 7 years, 4 months ago

    Inertia: Inertia is tendency to do nothing or to remain unchanged.

    Mass: Mass is a property of a physical body. It is a measure of an object's resistance to acceleration when a force is applied.

    0Thank You

    ANSWER

    • Posted by Shashank Kumar Yadav 7 years, 4 months ago

    CBSE > Class 09 > Science
    • 2 answers

    Arpita Singh 7 years, 4 months ago

    because there are different - different type of organisms and we cannt read them one by one so recall them easy the classification of organisms are important which is based on their differences and similarities

    2Thank You

    Pratik Pratik 7 years, 4 months ago

    Hi

    3Thank You

    ANSWER

    • Posted by Monalisha Tiwari 7 years, 4 months ago

    CBSE > Class 09 > Science
    • 1 answers

    Yogita Ingle 7 years, 4 months ago

    The Mach number is the ratio of flow velocity after a certain limit of the sounds speed. The formula that represents it is:

    M = u/c

    In which,

    The Mach number is M,

    Based on the limits the local flow velocity is u,

    The speed of sound in that medium is c.

    1Thank You

    ANSWER

    • Posted by Monalisha Tiwari 7 years, 4 months ago

    CBSE > Class 09 > Science
    • 0 answers
    ANSWER

    • Posted by Monalisha Tiwari 7 years, 4 months ago

    CBSE > Class 09 > Science
    • 2 answers

    A A 7 years, 4 months ago

    Because gold is a most malleable metal

    1Thank You

    Bindu Prasad 7 years, 4 months ago

    Because he need very thin material for alpha particle

    1Thank You

    ANSWER

    • Posted by Monalisha Tiwari 7 years, 4 months ago

    CBSE > Class 09 > Science
    • 1 answers

    A A 7 years, 4 months ago

    Body is covered into a shell excretory organ is present called kidney soft skin animals triploblastic bilateral symmetry

    1Thank You

    ANSWER

    • Posted by Monalisha Tiwari 7 years, 4 months ago

    CBSE > Class 09 > Science
    • 1 answers

    C Rani 7 years, 4 months ago

    It was earlier considered as a sub phylum under phylum non_chordata.it has worm-like marine animals with organ level organisation.open circulatory system.for example,balanoglossus

    1Thank You

    ANSWER

    • Posted by Tanvay Soni 7 years, 4 months ago

    CBSE > Class 09 > Science
    • 3 answers

    Mridul Gupta 7 years, 4 months ago

    Robert hook

    0Thank You

    Umash Singh 7 years, 4 months ago

    Robert Hooke

    0Thank You

    Monalisha Tiwari 7 years, 4 months ago

    Robert hook

    1Thank You

    ANSWER

    • Posted by Harmandeep Kaur 7 years, 4 months ago

    CBSE > Class 09 > Science
    • 1 answers

    Harnoor Singh 7 years, 4 months ago

    Yes i also want this

    1Thank You

    ANSWER

    • Posted by Aryan Mishra 7 years, 4 months ago

    CBSE > Class 09 > Science
    • 3 answers

    Aryan Mishra 7 years, 4 months ago

    Problems in solving numerical

    0Thank You

    Mridul Gupta 7 years, 4 months ago

    I can give you solution but first of all tell me your problem

    1Thank You

    Shreya Thakur 7 years, 4 months ago

    What is your problem

    1Thank You

    ANSWER

    • Posted by Aman Kumar 7 years, 4 months ago

    CBSE > Class 09 > Science
    • 2 answers

    Saniya Parwez 7 years, 4 months ago

    Breathing not respiration because involves release of energy also

    0Thank You

    Shreya Thakur 7 years, 4 months ago

    This process is called respiration

    2Thank You

    ANSWER

    • Posted by Abhay Sharma 7 years, 4 months ago

    CBSE > Class 09 > Science
    • 2 answers

    Shreya Thakur 7 years, 4 months ago

    Yes the chapter is important because we can get knowledge about the diseases, their causes and their treatment.The chapter will obviously come in our exams.

    2Thank You

    Poorvi Jain 7 years, 4 months ago

    Yes ofcourse as it will be coming in our papers and nevertheless we will have idea for all the diseases and its precautions too?

    3Thank You

    ANSWER

    • Posted by Kashish Asudani 7 years, 4 months ago

    CBSE > Class 09 > Science
    • 0 answers
    ANSWER

    • Posted by Harshita Gupta 7 years, 4 months ago

    CBSE > Class 09 > Science
    • 6 answers

    Umash Singh 7 years, 4 months ago

    This force is due to the attraction between the earth and the stone and it called the gravitational force or gravity of earth. Thus , a stone droped from height falls towards the earth because the earth exert a force of attraction called gravity fall

    1Thank You

    Sachin Kumar 7 years, 4 months ago

    It is a force of attraction between two objects having masses Ex-a stone falls on earth because the earth has mass.So, it attracts stone towards it.

    1Thank You

    Manishi Tandon 7 years, 4 months ago

    ??

    1Thank You

    Manishi Tandon 7 years, 4 months ago

    Not mention

    1Thank You

    Sameer Gupta 7 years, 4 months ago

    The curve in space-time fabric is known as gravity.

    0Thank You

    Manishi Tandon 7 years, 4 months ago

    It is the force of attractions between any two bodies in the universe

    2Thank You

    ANSWER

    • Posted by Shivangi Mishra 7 years, 4 months ago

    CBSE > Class 09 > Science
    • 0 answers
    ANSWER

    • Posted by Raushan Kumar 7 years, 4 months ago

    CBSE > Class 09 > Science
    • 2 answers

    Poorvi Jain 7 years, 4 months ago

    So, ans. Is 0.01

    1Thank You

    Poorvi Jain 7 years, 4 months ago

    Formula of k.e is half mv^2

    1Thank You

    ANSWER

    • Posted by Chirag Shakya 7 years, 4 months ago

    CBSE > Class 09 > Science
    • 0 answers
    ANSWER

    myCBSEguide App

    myCBSEguide

    Trusted by 1 Crore+ Students

    Install Now

    Test Generator

    Test Generator

    Create papers online. It's FREE.

    Try Now

    CUET Mock Tests

    CUET Mock Tests

    75,000+ questions to practice only on myCBSEguide app

    Install Now
    Google Play

    Download myCBSEguide App

    All Courses

    Other Websites

    CBSE Courses

    Resources

    Corporate

    NCERT Solutions

    CBSE Sample Papers

    All Content and Intellectual Property is under Copyright Protection | myCBSEguide.com ©2007-2026