10 ഗ്രാം CaCO3 ലെ കാർബൺ ആറ്റങ്ങളുടെ എണ്ണം.

What type of mirror produces magnification of +1 ?

An object of mass 10 kg is allowed to fall to the ground from a height of 20 m. How long will it take to reach the ground? (g-10 ms-2)

Which statement correctly describes the working of a loudspeaker?

Two sound waves A and B have same amplitude and same wave pattern, but their frequencies are 60 Hz and 120 Hz respectively, then :

What happens when a ferromagnetic material is heated above its Curie temperature?

Analyse the following statements and choose the correct option.

1. Statement I: All isotopes of a given element show the same type of chemical behaviour.
2. Statement II: The chemical properties of an atom are controlled by the number of electrons in the atom.

An object of mass 8.5 kg is kept on a level surface. On applying a force of 60 N, the object moves 12 m in the direction of the force. Calculate the quantity of work done.

A cylindrical object with a density of 0.8 g/cm³ is partially submerged in water. If the volume of object is 0.5 m³, what is the magnitude of the buoyant force acting on it?

Four statements are given regarding the image formed by a concave lens. Find the correct statement(s).

1. Diminished and inverted
2. Diminished and virtual
3. Enlarged and virtual
4. Diminished and erect

Maximum amount of a solid solute that can be dissolved in a specified amount of a given liquid solvent does not depend upon.......................

A circular coil carrying a current I has radius R and number of turns N. If all the three, i.e. the current I, radius R and number of turns N are doubled, then, magnetic field at its centre becomes:

What does SONAR stand for?

Which of the following statements are correct for cathode rays?

1. Cathode rays consist of negatively charged particles.
2. They are undeflected by electric and magnetic fields.
3. The characteristics of cathode rays do not depend upon the material of electrodes
4. The characteristics of cathode rays depend upon the nature of the gas present in the cathode ray tube.

Which of the following solutions have the same concentration ?

1. 4 g of NaOH in 250 mL of solution
2. 0.5 mol of KCl in 250 mL of solution
3. 40 g of NaOH in 250 mL of solution
4. 5.61 g of KOH in 250 mL of solution

A ball of mass 500 g has 800 J of total energy at a height of 10 m. Assuming no energy loss, how much energy does it possess at a height of 5 m?

Which of the following forms an acidic solution on hydrolysis?

Which of the following options does not electronic represent ground state configuration of an atom?

The pH of 10-2 M H₂SO₄ is:

Assertion and Reason related to magnetic lines of force are given below.

1. Assertion: Magnetic lines of force do not intersect each other.

2. Reason :At the point of intersection, the magnetic field will have two directions.

   Choose the correct option:

Heat capacity of a body is:

Match the types of colloidal systems given in Column I with the name given in Column II.

Solid in liquid	Gel
Liquid in solid	Sol
Liquid in liquid	Emulsion
Gas in liquid	Foam

Which of the following statements is correct regarding Semiconductor Physics?

Which of the following is a progressive curriculum approach?

While teaching about Acid rain, a Chemistry teacher spontaneously talks about the ruin of Marbles in Taj Mahal. Here the teacher is using:

While preparing a unit plan, teacher asks a question- What to teach? Identify the most suitable answer to this question.

Students were able to explain the concept of Inertia at the end of a class. The instructional objective attained by the students is:

Identify the odd one.

Preparation of Sulphur dioxide can be best explained using:

Which of the following is not a key component of a lesson plan?

Which among the following is an example for fact?

Formative assessment does not include:

The highest level of cognitive domain in Bloom's taxonomy is:

If a chemical spills on your skin, immediately you should:

Professional development of teachers should be viewed as a :

If a teacher faces difficulty in identifying appropriate learning experiences for a lesson, which among the following will be most helpful for the teacher?

A set of fundamental courses that all students are required to take in order to graduate from a particular school or program is:

Logical aspect of scientific method includes:

Which among the following Mill's canons can be used to explain the discovery of the planet Neptune ?

Which ancient Indian text discusses concepts related to atomic theory?

Fog index of a science textbook represents its:

Validity refers to the extent to which a test:

To overcome the challenges of professional development, it is important to:

Value points are used to reduce the subjectivity of:

The process of reflection helps students in self improvement. This can be done:

Which of the following is not a science process skill according to Yager's Taxonomy?

Who is considered the 'Father of Indian Space Program' ?

What is the primary goal of science teaching?

While teaching 'force' using Concept Attainment Model, teacher presents the following exemplars.

(i) Pushing a table

(ii) A box on the table

(iii) Stopping a rolling ball

Identify the positive exemplars.

Which of the following is not a characteristic of a constructivist classroom?