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
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.
The junction between ovule and funicle is represented by :
| 1. | Nucellus | 2. | Integument |
| 3. | Chalaza | 4. | Hilum |
Subtopic: Pistil: Ovule |
90%
From NCERT
NEET - 2024
Please attempt this question first.
Hints
Please attempt this question first.
Match List I with List II relating to major features of embryonic development at different timings of pregnancy:
Choose the correct answer from the options given below:
1. A-III, B-IV, C-I, D-II
2. A-II, B-I, C-III, D-IV
3. A-II, B-IV, C-I, D-III
4. A-III, B-IV, C-II, D-I
| List-I (No. of weeks) |
List-II (Major features) |
||
| A. | After 4 weeks of pregnancy | I. | Eye-lids separate and eyelashes are formed |
| B. | After 12 weeks of pregnancy | II. | Heart is formed |
| C. | After 24 weeks of pregnancy | III. | Limbs and digits are developed |
| D. | After 8 weeks of pregnancy | IV. | External genital organs are well developed |
Choose the correct answer from the options given below:
1. A-III, B-IV, C-I, D-II
2. A-II, B-I, C-III, D-IV
3. A-II, B-IV, C-I, D-III
4. A-III, B-IV, C-II, D-I
Subtopic: Embryonic Development till Gastrulation | Fetal Development & Parturition |
83%
From NCERT
NEET - 2024
Please attempt this question first.
Hints
Please attempt this question first.
If \(i\) is the angle of incidence and \(i'\) is the angle of emergence on a prism, then the relation between \(i\) and \(i'\) to obtain an angle of minimum deviation is:
1. \(i=i'\)
2. \(i>i'\)
3. \(i<i'\)
4. \(i=0\)
1. \(i=i'\)
2. \(i>i'\)
3. \(i<i'\)
4. \(i=0\)
Subtopic: Prisms |
78%
From NCERT
NEET - 2024
Please attempt this question first.
Hints
Please attempt this question first.
Given below are two statements: One is labelled as Assertion A and the other is labelled as Reason R.
In the light of the above statements, choose the correct answer from the options given below:
| Assertion A: | A glass tube partially filled with water represents an open organ pipe. |
| Reason R: | The open end corresponds to an antinode and the end in contact with water, to a node. |
| 1. | Both A and R are true and R is the correct explanation of A. |
| 2. | Both A and R are true and R is NOT the correct explanation of A. |
| 3. | A is true but R is false. |
| 4. | A is false but R is true. |
Subtopic: Travelling Wave on String |
62%
From NCERT
NEET - 2024
Please attempt this question first.
Hints
Please attempt this question first.
The photochemical phase of photosynthesis include:
A. Oxygen release
B. Formation of NADPH
C. Use of ATP
D. Water splitting
E. Carboxylation
Choose the correct answer from the options given below:
1. C and E only
2. A, B and D only
3. B, C and E only
4. A, B, C and D only
A. Oxygen release
B. Formation of NADPH
C. Use of ATP
D. Water splitting
E. Carboxylation
Choose the correct answer from the options given below:
1. C and E only
2. A, B and D only
3. B, C and E only
4. A, B, C and D only
Subtopic: Light Reaction: Electron Transport |
68%
From NCERT
NEET - 2024
Please attempt this question first.
Hints
Please attempt this question first.
Match List-I with List-II:
(Here symbols have their usual meaning and \(R\) is the radius of the thin shell)
Choose the correct answer from the options given below:
1. A-IV,B-III, C-I,D-II
2. A-I, B-II, C-III, D-IV
3. A-IV,B-III, C-II, D-I
4. A-I, B-III, C-II, D-IV
| List-I (Application of Gauss Law) |
List-II (Value of \(|E|\)) |
||
| A | Field inside thin shell | I | \( \frac{\lambda}{2 \pi \varepsilon_0 r} \hat{n} \) |
| B | Field outside thin shell | II | \( \frac{q}{4 \pi \varepsilon_0 R^2} \hat{r} \) |
| C | Field of thin shell at the surface | III | \( \frac{q}{4 \pi \varepsilon_0 r^2} \hat{r}\) |
| D | Field due to long charged wire | IV | zero |
Choose the correct answer from the options given below:
1. A-IV,B-III, C-I,D-II
2. A-I, B-II, C-III, D-IV
3. A-IV,B-III, C-II, D-I
4. A-I, B-III, C-II, D-IV
Subtopic: Gauss's Law |
80%
From NCERT
NEET - 2024
Please attempt this question first.
Hints
Please attempt this question first.
The standard enthalpy of neutralization is \(-57.3 \mathrm{~K}{\mathrm{J}}~ \mathrm{mol}^{-1}\)as:
\(\small{\underset{\text{strong acid}}{\mathrm{HCl_{(aq)}}}+\underset{\text{strong base}}{\mathrm{NaOH_{(aq)}}}\rightarrow\mathrm{NaCl_{(aq)}+H_2O(l),\Delta H=-57.3~KJ mol^{-1}}} \)
The enthalpy of neutralization of \(0.25 \mathrm{~mol}\) of HCI by \(0.25 \mathrm{~mol}\) of \(\mathrm{NaOH}\) is :
1. \(-57.3~ \mathrm{kJ} ~\mathrm{mol}^{-1}\)
2. \(-28.3 \mathrm{~kJ} \mathrm{~mol}^{-1}\)
3. \(-14.32 \mathrm{~kJ} \mathrm{~mol}^{-1}\)
4. \(+57.3~ \mathrm{kJ}~ \mathrm{mol}^{-1}\)
\(\small{\underset{\text{strong acid}}{\mathrm{HCl_{(aq)}}}+\underset{\text{strong base}}{\mathrm{NaOH_{(aq)}}}\rightarrow\mathrm{NaCl_{(aq)}+H_2O(l),\Delta H=-57.3~KJ mol^{-1}}} \)
The enthalpy of neutralization of \(0.25 \mathrm{~mol}\) of HCI by \(0.25 \mathrm{~mol}\) of \(\mathrm{NaOH}\) is :
1. \(-57.3~ \mathrm{kJ} ~\mathrm{mol}^{-1}\)
2. \(-28.3 \mathrm{~kJ} \mathrm{~mol}^{-1}\)
3. \(-14.32 \mathrm{~kJ} \mathrm{~mol}^{-1}\)
4. \(+57.3~ \mathrm{kJ}~ \mathrm{mol}^{-1}\)
Subtopic: Thermochemistry |
63%
NEET - 2024
Please attempt this question first.
Hints
ABO blood group is an example of
1. Incomplete dominance
2. Multiple allele
3. Pleiotropy
4. Linkage
1. Incomplete dominance
2. Multiple allele
3. Pleiotropy
4. Linkage
Subtopic: Co-dominance |
86%
From NCERT
NEET - 2024
Please attempt this question first.
Hints
Please attempt this question first.
© 2024 GoodEd Technologies Pvt. Ltd.