ഒരു സ്പ്രിംഗിന്റെ ഒരറ്റം ഉറപ്പിച്ചിരിക്കുകയും, മറ്റേ അഗ്രത്തിൽ 4kg തൂക്കിയിട്ടിരിക്കുന്നു. സ്പ്രിംഗ് കോൺസ്റ്റന്റ് 1 Nm-1 ' ആണ്. എങ്കിൽ ഈ ലോഡഡ് സിംഗിന്റെ ഓസിലേഷൻ പീരിയഡ് എത്രയാണ്?

ചന്ദ്രനിലെ പലായന പ്രവേഗം (എക്സ്കേപ്പ് വെലോസിറ്റി) എത്രയാണ്?

ഒരു ലോറിയ്ക്കും, ഒരു സൈക്കിളിനും ഒരേ ഗതികോർജ്ജമാണുള്ളത്. ഏതിനാണ് ആക്കം (മൊമന്റം) കൂടുതൽ?

The first country in the world to ban deforestation:

Which of the following book is not written by Stephen Hawking?

Which of the following are exothermic reactions?

1. neutralisation reaction between acid and alkali
2. formation of methane from nitrogen and hydrogen at 500⁰C
3. dissolution of NH₄Cl in water
4. decomposition of potassium chlorate

What is the primary goal of science teaching?

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

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

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

Value points are used to reduce the subjectivity of:

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

Validity refers to the extent to which a test:

Fog index of a science textbook represents its:

Which ancient Indian text discusses concepts related to atomic theory?

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

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

Which among the following is an example for fact?

Preparation of Sulphur dioxide can be best explained using:

Which of the following statements is correct regarding Semiconductor Physics?

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

Heat capacity of a body 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:

The pH of 10-2 M H₂SO₄ is:

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

Which of the following forms an acidic solution on hydrolysis?

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 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

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.

What does SONAR stand for?

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:

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

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

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?

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.

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.

The gravitational force on the lunar surface is approximately 1/6 times that of the Earth. (g-10 ms-2). If an object of mass 12 kg in earth is taken to the surface of the Moon, what will be its weight at the moon's surface?

Which of the following changes decrease the vapour pressure of water kept in a sealed vessel?

1. adding salt to water
2. decreasing the temperature of water
3. decreasing the volume of the vessel to one-third
4. decreasing the quantity of water

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

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

Which statement correctly describes the working of a loudspeaker?

Which of the following method is used to purify a liquid that decomposes at its boiling point?

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)

What type of mirror produces magnification of +1 ?

The number of carbon atoms in 10 g CaCO3

Which of the following is the most abundant element in the Universe?

Which of the following is the densest metal on Earth?

Which of the following species has an odd electron octet ?

Which of the following is the pure form of carbon?

Which among the following is an amphoteric oxide?