Question Discussion & Solution

The correct answer is Virendra Kumar Singhal.

Key Points

• Virendra Kumar Singhal has not been Chief Justice of Rajasthan High Court.

Additional Information 

• The Rajasthan High Court: 
  • It was established on 29 August 1949 under the Rajasthan High Court Ordinance, 1949.
  • The seat of the court is at Jodhpur and the bench at Jaipur.
  • The court has a sanctioned judge strength of 50.
  • The High Court of Rajasthan was founded in 1949 at Jaipur and was inaugurated by the Rajpramukh, Maharaja Sawai Man Singh on 29 August 1949, later on after complete integration of Rajasthan in 1956 it was moved to Jodhpur with the recommendation of the Satyanarayana Rao committee.

Important Points

• The First Chief Justice of Rajasthan High Court was Kamala Kant Verma.
• Present Chief Justice of Rajasthan High Court - Indrajit Mahanty

The correct answer is Rani Kanakwati.

• Rani Kanakwati built the Jagat Shiromani temple of Amer.

Key Points

• Jagat Shiromani temple of Amer 
  • Jagat Shiromani is a Hindu temple situated in Amer, Jaipur.
  • This temple is dedicated to the Hindu gods Krishna and Vishnu.
  • It was constructed between 1599-1608 AD by Queen Kanakwati, who was the wife of King Man Singh I.
  • The temple was built in the memory of their son Jagat Singh.

​Additional Information 

• Other famous temples of Jaipur
  • ​Birla Mandir
  • Garh Ganesh
  • Shila Devi
  •  Galta Ji Temple
  • Govind Devji Temple
  • Moti Dungri Temple 

The logic here is

The Opposite letter of first letter is third letter.

Second letter + 1 = third letter

Option 1 : DVW

Option 2 : GST

Option 3 : JPQ

Option 4 : MNK

From the above options 1, 2 and 3 follow the same logic and option 4 does not follow the same logic.

Hence, "MNK" is the answer. 

The correct answer is Hygrometer.

Key Points

• Hygrometer
  • A hygrometer is an instrument for measuring the relative humidity of the atmosphere.
  • The hygrometer was invented by Leonardo da Vinci.

Additional Information

• ​Barometer
  • A barometer is an instrument used to measure atmospheric pressure.
  • The barometer was invented by Torricelli.
• Hydrometer
  • A hydrometer is an instrument used to measure the specific gravity of liquids.
  • The hydrometer was invented by Nicholson.
• ​Anemometer
  • An anemometer is an instrument used to measure the velocity of wind and directions.
  • The anemometer was invented by Leon Alberti.

CONCEPT:

Electric Charge: It is a physical property of a matter that experiences a force when placed in an electromagnetic field.

• Electric charges create electric fields.

• Two types of charges are found – 1.) Positive charge. 2.) Negative charge
• Force experienced when charge placed in the electromagnetic field is \({{F}^{\to }}=q\times {{E}^{\to }}\) where q = charge of the body (in coulomb). \({{E}^{\to }}\) = intensity of the electric field.
• SI unit of charge is Coulomb and the symbol is C. One coulomb is equal to the charge on 6.241 x 10¹⁸ protons.

Inductor: It is a passive electric component that stores energy in the form of magnetic field lines. It is a simple loop of wire.

• The inductance of the inductor could be measured by equation L = Φ / I where ϕ is magnetic flux and I is a current flowing through it.
• SI unit of inductance is Henry.
• Energy stored in Inductor U = ½ (LI²).

Capacitor: It is a device consisting of two conducting "plates" separated by an insulating material (dielectric). It stores energy in the form of an electric field with the help of an electric charge.

• The capacitance of a capacitor is measured by equation C = q /Δ v where q is charge and ∆ V is a potential difference.
• SI Unit of capacitance is Farad.
• Energy stored in Capacitor U = ½ (CV²)

Resistance: It is a measure of how the device reduces the flow of electric current, basically it opposes the flow of charges.

• Further, it states the ratio of the applied voltage to electric current flows through it.
• R = V/I [R is resistance, V is the potential difference and I is electric current].
• Also, R = ρ × (L/A) [where ρ is specific resistance of the material, l is the length of conductor and A is the cross-sectional area of the conductor].
• The unit of resistance is volt/ampere or ohm (Ω).
• It does not store energy.

Transformer: It is an electrical device that converts A/C current from one voltage to another.

EXPLANATION:

• A capacitor stores energy in the form of electrical charges and fields.
• Here, C_o = Capacitance, V = voltage, A = area of the plates, d = distance between them.

\(\Rightarrow {{C}_{o}}=\frac{{{Q}_{o}}}{V}=\frac{{{\epsilon }_{o}}A}{d}\)

Important Points

• Remember Electric field lines are stored in capacitor & magnetic field lines are stored in Inductor.