Physics - MOST IMPORTANT CDS Previous Year Questions

at focus, diminished and virtual

at focus, diminished and real

between focus and optical centre, diminished and virtual

between focus and optical centre, magnified and real

either plane or convex

plane only

concave

convex only

the electric energy is completely converted into light energy

the electric energy is partly converted into light energy and partly into heat energy

the light energy is converted into electric energy

the electric energy is converted into magnetic energy

$\displaystyle 1$ only

$\displaystyle 2$ only

Both $\displaystyle 1$ and $\displaystyle 2$

Neither $\displaystyle 1$ nor $\displaystyle 2$

zero and $\displaystyle 220$ meters

$\displaystyle 220$ meters and zero

zero and $\displaystyle 110$ meters

$\displaystyle 110$ meters and $\displaystyle 220$ meters

a (curvature) singularity

a horizon

either a (curvature) singularity or a horizon

a charge

an inverter

a UPS

a step-down transformer

a step-up transformer

Because of the air encapsulated between two layers

Since effective thickness of two layers is more

Fabric of the cloth plays the role

Weaving of the cloth plays the role

Newton's first law of motion

Newton's second law of motion

Newton's third law of motion

law of conservation of energy

the metal expands more than the glass when both are heated

the metal and glass expand identically when heated

the metal shrinks when heated

both metal and glass shrink when cooled

Concave and convex.

Convex and concave.

Both concave of different focal lengths.

Both convex of different focal lengths.

High specific resistance.

Low specific resistance.

High light emitting power.

High melting point.

Increase the intensity of light emitted.

Increase the life of the filament.

Make the emitted light coloured.

Make the production of bulb economical.

Accelerated and refracted the most.

Slowed down and refracted the most.

Accelerated and refracted the least.

Slowed down and refracted the least.

Visible light

X- rays

Sound

Gamma rays

$\displaystyle 2$ electrons in the K-orbit, $\displaystyle 6$ electrons in the L-orbit, $\displaystyle 18$ electrons in the M-orbit.

$\displaystyle 2$ electrons in the K-orbit, $\displaystyle 8$ electrons in the L-orbit, $\displaystyle 32$ electrons in the M-orbit.

$\displaystyle 2$ electrons in the K-orbit, $\displaystyle 8$ electrons in the L-orbit, $\displaystyle 18$ electrons in the M-orbit.

$\displaystyle 2$ electrons in the K-orbit, $\displaystyle 8$ electrons in the L-orbit, $\displaystyle 16$ electrons in the M-orbit.

The neutrons are made fast.

The protons are made fast.

The neutrons are made slow.

The protons are made slow.

The object is moving with uniform speed.

The object is at rest.

The object is having non-linear motion.

The object is moving with non-uniform speed.

A straight line

A parabola

A circle

An ellipse

Diamond powder.

Graphite powder.

Molten carbon.

Alloy of carbon and iron.