An ideal inductor-resistor-battery circuit is switched on at \(t=0~\text{s}\). At time \(t\), the current is \(i=i_0\left(1-e^{\left(-\frac{t}{\tau}\right)}\right)\text{A}\), where \(i_0\) is the steady-state value. The time at which the current becomes \(0.5i_0\) is: [Given \(\text{ln}(2)= 0.693\)]
1. \(6.93 \times 10^3 ~\text{s}\)
2. \(6.93~\text{ms}\)
3. \(69.3~\text{s}\)
4. \(6.93~\text{s}\)
Subtopic: LR circuit |
59%
From NCERT
NEET - 2024
Please attempt this question first.
Hints
Please attempt this question first.
Given below are two statements:
In light of the above statements, choose the most appropriate answer from the options given below:
1. Both Statement I and Statement II are correct.
2. Both Statement I and Statement II are incorrect.
3. Statement I is correct but Statement II is incorrect
4. Statement I is incorrect but Statement II is correct.
| Statement I: | Bacterial infection by Bacillus thuringiensis can kill only caterpillar larvae. |
| Statement II: | B. thuringiensis cannot kill adult moths. |
1. Both Statement I and Statement II are correct.
2. Both Statement I and Statement II are incorrect.
3. Statement I is correct but Statement II is incorrect
4. Statement I is incorrect but Statement II is correct.
Subtopic: Microbes in Biocontrol Agent |
50%
From NCERT
NEET - 2024
Please attempt this question first.
Hints
Please attempt this question first.
Given below are two statements:
In the light of the above statements, choose the not appropriate answer from the options give below:
1. Both Statement I and Statement II are correct.
2. Both Statement I and Statement II are incorrect.
3. Statement I is correct but Statement II is incorrect.
4. Statement I is incorrect but Statement II is correct.
| Statement I: | Benzoic acid produces effervescence on treatment with aq. \(\mathrm{NaHCO}_3\) |
| Statement II: | The effervescence is due to the release of hydrogen gas. |
In the light of the above statements, choose the not appropriate answer from the options give below:
1. Both Statement I and Statement II are correct.
2. Both Statement I and Statement II are incorrect.
3. Statement I is correct but Statement II is incorrect.
4. Statement I is incorrect but Statement II is correct.
Subtopic: Carboxylic Acids: Preparation & Properties |
65%
From NCERT
NEET - 2024
Please attempt this question first.
Hints
Please attempt this question first.
The percentage errors in the measurement of mass and momentum of an object are \(1\%\) and \(2\%\) respectively. The percentage error in the measurement of kinetic energy of the object is:
1. \(1\%\)
2. \(3\%\)
3. \(4\%\)
4. \(5\%\)
1. \(1\%\)
2. \(3\%\)
3. \(4\%\)
4. \(5\%\)
Subtopic: Errors |
65%
From NCERT
NEET - 2024
Please attempt this question first.
Hints
Please attempt this question first.
In plants, sucrose is converted into two molecules of monosaccharides due to action of invertase and then both enter the glycolytic pathway. Identify the monosaccharides.
1. Glucose and glucose
2. Glucose and fructose
3. Glucose and galactose
4. Fructose and galactose
1. Glucose and glucose
2. Glucose and fructose
3. Glucose and galactose
4. Fructose and galactose
Subtopic: Glycolysis |
88%
NEET - 2024
Please attempt this question first.
Hints
If \(F=\alpha t^2-\beta t\) is the magnitude of the force acting on a particle at an instant \(t\) then the time, at which the force becomes constant, is (where \(\alpha\) and \(\beta\) are constants):
| 1. | \(\dfrac{\beta}{\alpha}\) | 2. | \(\dfrac{\beta}{2\alpha}\) |
| 3. | \(\dfrac{2\beta}{\alpha}\) | 4. | zero |
Subtopic: Types of Forces |
71%
From NCERT
NEET - 2024
Please attempt this question first.
Hints
Please attempt this question first.
If \(\overrightarrow{E}\) and \(\overrightarrow{B}\) represent the electric field vector and magnetic field vector, respectively, in an electromagnetic wave then the direction of EM wave is along:
1. \(\overrightarrow{E}\)
2. \(\overrightarrow{B}\)
3. \(\overrightarrow{E}\times\overrightarrow{B}\)
4. \(\overrightarrow{B}\times\overrightarrow{E}\)
1. \(\overrightarrow{E}\)
2. \(\overrightarrow{B}\)
3. \(\overrightarrow{E}\times\overrightarrow{B}\)
4. \(\overrightarrow{B}\times\overrightarrow{E}\)
Subtopic: Properties of EM Waves |
84%
From NCERT
NEET - 2024
Please attempt this question first.
Hints
Please attempt this question first.
Given below are two statements:
In light of the above statements, choose the correct answer from the options given below.
1. Both Statement I and Statement II are true
2. Both Statement I and Statement II are false
3. Statement I is true but Statement II is false
4. Statement I is false but Statement II is true
| Statement I: | Two DNA sequences were prepared corresponding to A and B, chains of human insulin and were introduced in the plasmids of Agrobacterium to produce insulin chain. |
| Statement II: | Chain A and B were produced separately, extracted and combined by creating disulphide bonds to form human insulin. |
1. Both Statement I and Statement II are true
2. Both Statement I and Statement II are false
3. Statement I is true but Statement II is false
4. Statement I is false but Statement II is true
Subtopic: Med Applications & Humulin |
62%
From NCERT
NEET - 2024
Please attempt this question first.
Hints
Please attempt this question first.
Two identical rectangular plane sheet \(A\) and \(B\) each of surface charge density \(\varepsilon_0 \text{Cm}^{-2}\) are placed parallel to each other as shown in figure. The electric field at the mid point \(P\) will be:
1. \(2 ~\text{NC}^{-1}\)
2. \(1~\text{NC}^{-1}\)
3. \(0.5~\text{NC}^{-1}\)
4. zero
1. \(2 ~\text{NC}^{-1}\)
2. \(1~\text{NC}^{-1}\)
3. \(0.5~\text{NC}^{-1}\)
4. zero
Subtopic: Electric Field |
71%
From NCERT
NEET - 2024
Please attempt this question first.
Hints
Please attempt this question first.
Radiation of wavelength \(280~\text{nm}\) is used in an experiment of photoelectric effect with cathode of work function, \(2.5~\text{eV}.\) The maximum kinetic energy of the photoelectrons is [Take \(h=6.62\times10^{-34}~\text{J s}\) and \(c=3\times10^{8}~\text{ms}^{-1}\)]:
1. \(4.4~\text{eV}\)
2. \(7.103\times10^{-15}~\text{J}\)
3. \(1.9~\text{eV}\)
4. \(4.60~\text{eV}\)
1. \(4.4~\text{eV}\)
2. \(7.103\times10^{-15}~\text{J}\)
3. \(1.9~\text{eV}\)
4. \(4.60~\text{eV}\)
Subtopic: Einstein's Photoelectric Equation |
75%
From NCERT
NEET - 2024
Please attempt this question first.
Hints
Please attempt this question first.
© 2024 GoodEd Technologies Pvt. Ltd.