sam07

Pythagoras Theorem

Which one is better option from B.Tech(CSE), B.Tech(CS), BCA, BSC(IT) and BE(CSE)

Does the negative mass of antimatter mean that it's gravitationally repelled from stars?

Question 8

Which of the following is FALSE about arrays on Java.

Question 9

What is the length of the following array:

byte[] data = { 12, 34, 9, 0, -62, 88 };

◯ 12

◯ 6

◯ 5

◯ 1

A man weighing 65 kg jumps from a 100 ft high building with a load of 35 kg What will be the load experienced by him?
1) 20 kg
2) 100 kg
3) 200 kg
4) Zero

Light energy is converted into chemical energy by -
1) Electrolysis
2) Respiration
3) Transpiration
4) Photosynthesis

The most commonly used semi-conductive material is -
1) Germanium
2) Silicon
3) Carbon
4) Sulphur

Very High Frequency (VHF) has -
1) shorter wavelengths
2) shortest wavelengths
3) longer wavelengths
4) longest wavelengths

An elastic wave generated by an impulse such as an earthquake or an explosion is called -
1) sound wave
2) epicentre
3) tectonic shift
4) seismic wave

Non-metallic mineral is -
1) Marble
2) Manganese
3) Silver
4) Lead

Which of the following statements is true concerning the reflection of light?

1. The angle of incidence is greater than the angle of reflection.

2. The incident ray reflected ray and normal lies in the same plane.

3. The light reflected from the rough surface is called diffuse reflection.

4. Light travel from one medium to another medium.

   1.  

The term refraction of light means -
1) Bending of light rays when they enter from one medium to another medium
2) Splitting of white light into seven colours when it passes through the prism
3) Bending of light round the corners of obstacles and apertures
4) Coming back of light from a bright smooth surface

 The weight of an object is due to -
1) the net force acting on it
2) the total of all forces acting on it irrespective of their directions
3) the force that it exerts on the ground
4) its inert property

 A non-spherical shining spoon can generally be considered as a -
1) Spherical mirror
2) Parabolic mirror
3) Plane mirror
4) Lens

Which is the smallest possible unit of a chemical compound?
1) Atom
2) Molecule
3) Proton
4) Photon

What should be the characteristics of an electric-fuse wire?
1) High melting point, high specific resistance
2) Low melting point, low specific resistance
3) High melting point, low specific resistance
4) Low melting point, high specific resistance

Which one of the following laws of electromagnetism does not give the direction of magnetic field?
1) Right-hand thumb rule
2) Fleming's left-hand rule
3) Fleming's right-hand rule
4) Faraday's law of electromagnetic induction

A device that converts chemical energy into electrical energy is called -
1) motor
2) generator
3) battery
4) moving-coil meter

With what do you divide thrust in a liquid to obtain the value of pressure?
1) Area
2) Density
3) Mass
4) Volume

 The alloy of steel that is used for making automobile parts such as axle, ball bearing, etc. is -
1) Nickel steel
2) Chromium steel
3) Tungsten steel
4) Stainless steel

After a shower of rain, a rainbow is seen -
1) Even in the absence of the sun
2) opposite the sun
3) towards the sun
4) anywhere, irrespective of the position of the sun

When light passes from one medium into another, it suffers a change in -
1) Frequency, wavelength, and speed
2) Frequency and speed
3) Wavelength and speed
4) None of the above

Which of the following is a semiconductor?
1) Silver
2) Glass
3) Copper
4) Silicon

Which of the following is not a primary force which influences ocean currents ?
1) Magnetic fields of the earth
2) Heating by the sun
3) Gravity
4) Coriolis Force

In the visible spectrum, the colour having the shortest wavelength is -
1) Green
2) Red
3) Violet
4) Blue

The working principle of transformer is -
1) Self - induction
2) Mutual induction
3) Electromagnetic induction
4) Lorentz law

Once a satellite has been launched into orbit, the only force governing its motion is the force of -
1) Gravity
2) Elasticity
3) Friction
4) Fuel driven