SAT (Stage-1) M...

A convex lens of focal length 80 cm and concave lens of focal length 50 cm are combined together. What will be their resulting power?

The strength of the magnetic field around a long straight wire carrying current is

A proton moving vertically downward enters in a magnetic field pointing towards north. In which direction will the proton deflect?

A bar magnet slowly approaches a coil with the North Pole facing it. The nearer end of the coil behaves like

(a) North Pole
(b) South Pole

When the bar magnet is slowly withdrawn, the nearer end of the coil behaves like

(c) North Pole
(d) South Pole

Water drops fall at regular intervals from a roof. At an instant, when a drop is about to leave the roof, the separation between 3 successive drops below the roof are in the ratio

With what speed a body should be thrown upwards so that the distances traversed in the 5^th second and 6^th second are equal?

A balloon starts rising from the ground with an acceleration of 1.25 m/s². After 8s, a stone is released from the balloon. The stone will ___ (Take g = 10 m/s²)

A person travels along a straight road for the first half length with a constant speed 'v' and the second half length with a constant speed '2v'. The average speed is

A vessel with water is placed on a weighing pan and reads 600 g. Now, a ball of 40 g and density 0.80 g/cc is sunk into the water with a pin, as shown in the figure. Keeping it sunk, the final reading of the weighing pan will be

Which of the following statements is/are correct if the temperature of 1 kg of water is raised from 30°C to 140°C?

I. There will be a change in the physical state of the substance.
II. It goes through a chemical change.
III. The change of state requires latent heat.
IV. The boiling point of water will depend on the atmospheric pressure.

The atomic number of chlorine is 17. What is the total number of electrons in the s-orbitals in the atom?

Which of the following is not an acidic salt?

Which of the following pairs of compounds have the same percentage of carbon?

Hydrangea is a natural indicator of the pH of a given solution. Analyse the accuracy of the following statements regarding Hydrangea flowers

I. Pink colour hydrangea flower, growing on a patch of land indicates, the soil pH greater than 7.
II. On adding organic manure to the soil, the colour of the flowers will turn blue.

What type of chemical reaction takes place when Silver Bromide is exposed to sunlight?