History Chapter Wise Best MCQ
1. The energy needed to remove an electron from a hydrogen atom from the state
1. 13.6eV
2. 0.136eV
3. 1.36eV
4. 0.00136eV
5. None of this
Answer: 2.0.136 EVA Explanation:
The energy needed to remove the electron from hydrogen atoms to n = 10 would be 0.136eV
2. A nanometer equals ..............................
1. 10-9m
2. 10-8m
3. 10-12m
4. 10-10m
5. None of this
Answer - 1.10 m Explanation:
The unit length of the nanometer or the nanometer metric system, one billionth of a meter (0.000000001 meters or 10-9 meters)
3. The fourth position is known as 1. Solid
2. Liquid
3. Gas
4. Plasma
5. None of this
Answer - 4. Plasma Explanation:
Plasma is one of the four basic components of the matter, others are solid, liquid and gas. There are other properties which unlike other states in a plasma.
4. What kind of energy is the oldest of people?
1. Electrical power
2. Heat power
3. Geothermal power
4. Solar energy
5. None of this
Answer and explain
Answer - 3. Explanation of geothermal energy
:
Geothermal energy generates heat energy and is stored in the earth. Thermal power determines the energy temperature.
5. A photocell is transformed into light energy
............................
1. Thermal Power
2. Electrical power
3. Sound power
4. Electronic power
5. None of this
Explanation:
Photocell is a solid-state electronic device that produces a voltage that converts light electrical energy or that current flow uses light controlled
6. Shield represents the speed ...........................
1. Speed - time
2. Velocity - Frequency
3. Frequency - amplitude
4. Speed - voltage
5. None of this
Answer -: 1. Velocity - Explanation of time:
Velocity shield - Time graph represents acceleration. Velocity versus time speed for two types of speed - constant velocity and change velocity
Acceleration The rate of change in the speed of an object
7. Is the fan used to change speed?
1. Resistance
2. Transistor
3. Regulator
Regulator is used to control / control the speed of the fan and provide a convenient environment for the residents.
8. Temperature of metal wire
............................... .. when the current is passed
1. It is not any of these
Constant
3. Decrease
4. Growth
5. All this
Answer and explain
Answer - 4. Explanation Explanation:
The metal wire temperature increases when the current passes through it
9. When a light wave is reflected from a mirror, then there is a change in it ..............................
1. Overwhelming indices
2. Reflective index
3. Frequency
4. Amplitude
5. None of this
Answer - 4. Amplitude expansion:
When a light wave is reflected from a mirror, there is a change in its width because the reflective wave is reflected in alternating waves
What is the maximum escape of space rockets?
1. 11km / second
2. Escape 14km / sec requires a minimum speed for an object to "break" from a massive body gravitational attraction. The escape exodus from the Earth is approximately 40,270 km / h (25,020 miles). The maximum escape exemption of the rocket will be moved to 11 seconds / second
1. Can pass through the word ................. .. ..
1.Gas
2.Vaccum
3.Liquid
4.Solid
5. This one
Answer - 2. Vaccum Explanation:
Sound can not travel through vaccum because there is no air molecule to vibrate the sound
2. Which of the following is like a magnifying glass?
1.Velocity
2.Acceleration
3.Momentum
Impulse has the same unit and dimensions (MLT-1) as the speed. Unit International System, this kg · m / s = n
The most powerful power of nature ...................
1. Electromagnetic Force
2. The gravitational forces
3. Magnetic forces
4. Nuclear Force
5. This one
Answer - 4. Nuclear Force Explanation:
Strong forces - nuclear power
Weak forces - gravitational forces
4. The image created based on the retina of the eye is ........................... after the removal of the stimulus
1. 0.1s
2. 0.001s
3. 0.10s
4. 0.0001s
Continued about an image placed on an eye retina
0.1s after removal of anxiety
5. Which type of lens is made of glass?
1. Pyrex Glass
2. Flint Glass
3. Crystal Glass
Currently known flint specs have vertical indicators between 1.45 and 2.00. A concave lens of flint glass is usually combined with a convex lens
6. Bar magnetism in the center of the magnet ....................... ..
1.Infinite
2.Minimum
The density of the photo field lines is reduced to the "pole" of the magnet and to the center
7. 1 kcal =?
1.1000 cal
2.100 cal
3.1200 cal
4.4.18 Joule
5. This one
Answer: 1.1000 cal Explanation:
1 kilogram = 1000 cal
8. Due to sunset and sunrise .....................
1. Overall internal reflection
2.Scattering
3.Reflect
No comments:
Post a Comment